Question 1: Palette 1/391

Errorless NEET 2024 MCQ

Which of the following is not a component of Fallopian tube

A

Uterine fundus

B

Isthmus

C

Infundibulum

D

Ampulla

Question 2: Palette 2/391

Errorless NEET 2024 MCQ

Identify the correct option (A), (B), (C), (D) with respect to spermatogenesis

A

FSH, Leydig cells, Sertoli cells, Spermiogenesis

B

ICSH, Interstitial cells, Leydig cells, spermiogenesis

C

FSH, Sertoli cells, Leydig cells, spermatogenesis

D

ICSH, Leydig cells, Sertoli cells, spermatogenesis

Question 3: Palette 3/391

Errorless NEET 2024 MCQ

Given below are two statements: Statement I : The presence or absence of hymen is not a reliable indicator of virginity Statement II : The hymen is torn during the first coitus only. In the light of the above statements, choose the correct answer from the options given below :

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 4: Palette 4/391

Errorless NEET 2023 MCQ

Given below are two statements: Statement I: Vas deferens receives a duct from seminal vesicle and opens into urethra as the ejaculatory duct. Statement Il: The cavity of the cervix is called cervical canal which along with vagina forms birth canal. In the light of the above statements, choose the correct answer from the options given below

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 5: Palette 5/391

Errorless NEET 2022 MCQ

Given below are two statements Statement I : The release of sperms into the seminiferous tubules is called spermiation. Statement II : Spermiogenesis is the process of formation of sperms from spermatogonia. In the light of the above statements, choose the most appropriate answer from the options given below

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 6: Palette 6/391

Errorless NEET 2022 MCQ

Which of the following statements are true for spermatogenesis but do not hold true for oogenesis
(A) It results in the formation of haploid gametes
(B) Differentiation of gamete occurs after the completion of meiosis
(C) Meiosis occurs continuously in a mitotically dividing stem cell population
(D) It is controlled by the Luteinising Hormone (LH) and Follicle Stimulating Hormone (FSH) secreted by the anterior pituitary
(E) It is initiated at puberty
Choose the most appropriate answer from the options given below

A

(B), (D) and (E) only

B

(B), (C) and (E) only

C

(C) and (E) only

D

(B) and (C) only

Question 7: Palette 7/391

Errorless NEET 2022 MCQ

At which stage of life the oogenesis process is initiated

A

Birth

B

Adult

C

Puberty

D

Embryonic development stage

Question 8: Palette 8/391

Errorless NEET 2021 MCQ

Receptors for sperm binding in mammals are present on

A

Vitelline membrane

B

Perivitelline space

C

Zona pellucida

D

Corona radiata

Question 9: Palette 9/391

Errorless NEET 2021 MCQ

Which of the following secretes the hormone relaxin, during the later phase of pregnancy

A

Corpus luteum

B

Foetus

C

Uterus

D

Graafian follicle

Question 10: Palette 10/391

Errorless NEET 2020 MCQ

Which of the following hormone levels will cause release of ovum (ovulation) from the graffian follicle

A

Low concentration of FSH

B

High concentration of Estrogen

C

High concentration of Progesterone

D

Low concentration of LH

Question 11: Palette 11/391

Errorless NEET 2020 MCQ

Match the following columns and select the correct option Column - I With Column - II

Column-I	Column-II
(A) Placenta (B) Zona pellucida (C) Bulbo-urethral glands (D) Leydig cells	(P) Androgens (Q) Human Chorionic Gonadotropin (hCG) (R) Layer of the ovum (S) Lubrication of the Penis

A

A-Q, B-R, C-S, D-P

B

A-S, B-R, C-P, D-Q

C

A-P, B-Q, C-R, D-S

D

A-R, B-P, C-S, D-Q

Question 12: Palette 12/391

Errorless NEET 2019 MCQ

Select the incorrect statement

A

Male fruit fly is heterogametic

B

In male grasshoppers, 50% of sperms have no sex chromosome

C

In domesticated fowls sex of progeny depends on the type of sperm rather than egg

D

Human males have one of their sex chromosome much shorter than the other

Question 13: Palette 13/391

Errorless NEET 2019 MCQ

Extrusion of second polar body from egg nucleus occurs

A

After entry of sperm but before fertilization

B

After fertilization

C

Before entry of sperm into ovum

D

Simultaneously with first cleavage

Question 14: Palette 14/391

Errorless NEET 2019 MCQ

What is the fate of the male gametes discharged in the synergid

A

One fuses with the egg, other(s) degenerate(s) in the synergid

B

All fuse with the egg

C

One fuses with the egg, other(s) fuses(s) with synergid nucleus

D

One fuses with the egg and other fuses with central cell nuclei

Question 15: Palette 15/391

Errorless NEET 2018 MCQ

The difference between spermiogenesis and spermiation is [NCERT Pg. No. 31]

A

In spermiogenesis spermatids are formed, while in spermiation spermatozoa are formed

B

In spermiogenesis spermatozoa are formed, while in spermiation spermatids are formed

C

In spermiogenesis spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation spermatozoa are formed

D

In spermiogenesis spermatozoa are formed, while in spermiation spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules

Question 16: Palette 16/391

Errorless NEET 2018 MCQ

The amnion of mammalian embryo is derived from

A

Ectoderm and mesoderm

B

Endoderm and mesoderm

C

Mesoderm and trophoblast

D

Ectoderm and endoderm

Question 17: Palette 17/391

Errorless WB JEE 2016 MSQ

Which cells of the ovary are involved in the synthesis of estrogen

A

Theca interna cells

B

Granulosa cells

C

Interstitial cells

D

Theca externa cells

Question 18: Palette 18/391

Errorless NEET (Phase-I) 2016 MCQ

Identify the correct statement on 'inhibin'

A

Inhibits the secretion of LH, FSH and prolactin

B

Is produced by granulose cells in ovary and inhibits the secretion of FSH

C

Is produced by granulose cells in ovary and inhibits the secretion of LH

D

Is produced by nurse cells in testes and inhibits the secretion of LH

Question 19: Palette 19/391

Errorless NEET (Phase-I) 2016 MCQ

Changes in GnRH pulse frequency in females is controlled by circulating levels of

A

Estrogen and progesterone

B

Estrogen and inhibin

C

Progesterone only

D

Progesterone and inhibin

Question 20: Palette 20/391

Errorless NEET (Phase-II) 2016 MCQ

Match Column-I with Column-II and select the correct option using the codes given below Column-I Column-II

Column-I	Column-II
(A) Mons pubis (B) Antrum (C) Trophectoderm (D) Nebenkern	(P) Embryo formation (Q) Sperm (R) Female external genitalia

A

A-P, B-S, C-R, D-Q

B

A-R, B-S, C-Q, D-P

C

A-R, B-S, C-P, D-Q

D

A-R, B-P, C-S, D-Q

Question 21: Palette 21/391

Errorless NEET (Phase-I) 2016 MCQ

Fertilization in humans is practically feasible only if

A

The sperms are transported into vagina just after release of ovum in fallopian tube

B

The ovum and sperms are transported simultaneously to ampullary isthmic junction of the fallopian tube

C

The ovum and sperms are transported simultaneously to ampullary – isthmic junction of the cervix

D

The sperms are transported into cervix within 48 hrs of release of ovum in uterus

Question 22: Palette 22/391

Errorless NEET (Phase-II) 2016; NEET 2019 MCQ

Select the correct sequence of transport of sperm cells in male reproductive system

A

Testis → Epididymis → Vasa efferentia → Rete testis → Inguinal canal → Urethra

B

Seminiferous tubules → Rete testis → Vasa efferentia → Epididymis → Vas deferens → Ejaculatory duct → Urethra → Urethral meatus

C

Seminiferous tubules → Vasa efferentia → Epididymis → Inguinal canal → Urethra

D

Testis → Epididymis → Vasa efferentia → Vas deferens → Ejaculatory duct → Inguinal canal → Urethra → Urethral meatus

Question 23: Palette 23/391

Errorless AIPMT 2015 MCQ

Which of the following layers in an antral follicle is acelluar

A

Theca interna

B

Stroma

C

Zona pellucida

D

Granulosa

Question 24: Palette 24/391

Errorless AIPMT 2015 MCQ

Which of the following events is not associated with ovulation in human female

A

Full development of graffian follicle

B

Release of secondary oocyte

C

LH surge

D

Decrease in estradiol

Question 25: Palette 25/391

Errorless MHCET 2015 MCQ

During ovulation, the ovary releases

A

Oogonia

B

Ootid

C

Primary oocyte

D

Secondary oocyte

Question 26: Palette 26/391

Errorless KCET 2015 MCQ

During menstrual cycle the cyclical changes takes place in

A

Perimetrium

B

Endometrium

C

Corpus luteum

D

Myometrium

Question 27: Palette 27/391

Errorless AIPMT (Cancelled) 2015 MCQ

Capacitation refers to changes in the

A

Ovum before fertilization

B

Ovum after fertilization

C

Sperm after fertilization

D

Sperm before fertilization

Question 28: Palette 28/391

Errorless AIPMT (Cancelled) 2015 MCQ

Which of the following cells during gametogenesis is normally diploid

A

Spermatid

B

Spermatogonia

C

Secondary polar body

D

Primary polar body

Question 29: Palette 29/391

Errorless AIPMT 2015 MCQ

In human females, meiosis-II is not complete until

A

Fertilization

B

Uterine implantation

C

Birth

D

Puberty

Question 30: Palette 30/391

Errorless MH CET 2015 MCQ

Select the right option in which A and B are correctly identified with their respective functions

A

A – Ectoderm, B – Endoderm, Function of A – Differentiated as embryo, Function of B – Get attached to the endometrium

B

A – Trophoblast, B – Inner cell mass, Function of A – Differentiated as embryo, Function of B – Get attached to the endometrium

C

A – Inner cell mass, B – Trophoblast, Function of A – Get attached to the endometrium, Function of B – Differentiated as embryo

D

A – Trophoblast, B – Inner cell mass, Function of A – Get attached to the endometrium, Function of B – Differentiated as embryo

Question 31: Palette 31/391

Errorless AIPMT (Cancelled) 2015 MCQ

Hysterectomy is surgical removal of

A

Prostate gland

B

Vas-deference

C

Mammary glands

D

Uterus

Question 32: Palette 32/391

Errorless MHCET 2015 MCQ

Ectoderm gives rise to

A

Cornea, heart, bronchi, dentine

B

Adrenal cortex, tongue, liver, retina

C

Lungs, adrenal medulla, dermis, thyroid

D

Enamel of teeth, nails, adrenal medulla, hair

Question 33: Palette 33/391

Errorless MHCET 2015 MCQ

Pick the ODD homologous pair out

A

Bartholin's Gland – Cowper's Gland

B

Clitoris – Penis

C

Mons pubis – Glans penis

D

Labia majora – Scrotum

Question 34: Palette 34/391

Errorless MHCET 2015 MCQ

What is "After birth" referred to

A

Amniotic fluid passing out

B

Expulsion of baby

C

Expulsion of placenta, umbilical cord and foetal membrane

D

Secretion of hormone relaxin

Question 35: Palette 35/391

Errorless AIPMT 2015 MCQ

Ectopic pregnancies are referred to as

A

Implantation of embryo at site other than uterus

B

Implantation of defective embryo in the uterus

C

Pregnancies terminated due to hormonal imbalance

D

Pregnancies with genetic abnormality

Question 36: Palette 36/391

Errorless GUJCET 2014 MCQ

What does 'a', 'b'and 'c' represents in the following flow chart

A

‘a' = progesterone, 'b’ = oxytocin, ‘c' = slow contraction of uterus

B

'a’ = oxytocin, 'b’ = uterus, 'c’ = slow contraction of uterus

C

‘a’ = placenta, ‘b’ = oxytocin, c' = vigorous contraction of uterus

D

‘a’ = oxytocin, 'b' = placenta, c' = vigorous contraction of uterus

Question 37: Palette 37/391

Errorless CBSE PMT 2014 MCQ

The shared terminal duct of the reproductive and urinary system in the human male is

A

Vas deferens

B

Vasa efferentia

C

Urethra

D

Ureter

Question 38: Palette 38/391

Errorless MP PMT 2013 MCQ

How many spermatids are formed from a secondary spermatocyte

A

1

B

2

C

4

D

8

Question 39: Palette 39/391

Errorless MP PMT 2013 MCQ

Zonary placenta is found in

A

Carnivore mammals

B

Herbivore mammals

C

Both

D

None of the above

Question 40: Palette 40/391

Errorless NEET 2013 MCQ

Which one of the following is not the function of placenta. It

A

Secretes oxytocin during parturition

B

Facilitates supply of oxygen and nutrients to embryo

C

Secretes estrogen

D

Facilitates removal of carbon dioxide and waste material from embryo

Question 41: Palette 41/391

Errorless NEET (Karnataka) 2013 MCQ

Select the option which correctly matches the endocrine gland with its hormone and its function

A

Endocrine gland – Placenta, Hormone – Estrogen, Function – Initiates secretion of the milk

B

Endocrine gland – Corpus luteum, Hormone – Estrogen, Function – Essential for maintenance of endometrium

C

Endocrine gland – Leydig cells, Hormone – Androgen, Function – Initiates the production of sperms

D

Endocrine gland – Ovary, Hormone – FSH, Function – Stimulates follicular development and the secretion of estrogens

Question 42: Palette 42/391

Errorless Kerala PMT 2012; WB JEE 2012 MCQ

In spermatogenesis, reduction division of chromosome occurs during conversion of [NCERT Pg. No. 33]

A

Spermatogonia to primary spermatocytes

B

Primary spermatocytes to secondary spermatocytes

C

Secondary spermatocytes to spermatids

D

Spermatids to sperms

Question 43: Palette 43/391

Errorless NCERT; CBSE PMT (Pre.) 2012 MCQ

Which one of the following statements is false in respect of viability of mammalian sperm

A

Sperm is viable for only up to 24 hours

B

Survival of sperm depends on the pH of the medium and is more active in alkaline medium

C

Viability of sperm is determined by its motility

D

Sperms must be concentrated in a thick suspension

Question 44: Palette 44/391

Errorless Odisha JEE 2012 MCQ

Which of the following hormones is not secreted by corpus luteum

A

Progesterone

B

Relaxin

C

Estradiol

D

Inhibin

Question 45: Palette 45/391

Errorless CBSE PMT (Mains) 2012 MCQ

The secretory phase in the human menstrual cycle is also called

A

Luteal phase and lasts for about 6 days

B

Follicular phase lasting for about 6 days

C

Luteal phase and lasts for about 13 days

D

Follicular phase and lasts for about 13 days

Question 46: Palette 46/391

Errorless Kerala PMT 2012 MCQ

hCG hPL and relaxin are produced in women

A

At the time of puberty

B

Only during pregnancy

C

Before puberty

D

At the time of menopause

E

During menstruation

Question 47: Palette 47/391

Errorless CBSE PMT (Pre.) 2012 MCQ

In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was

A

High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo

B

High level of circulating HCG to stimulate endometrial thickening

C

High level of FSH and LH in uterus to stimulate endometrial thickening

D

High level of circulating HCG to stimulate estrogen and progesterone synthesis

Question 48: Palette 48/391

Errorless J & K CET 2012 MCQ

Sperm of animal species A cannot fertilize ovum of species B because

A

Fertilizin of A and antifertilizin of B are not compatible

B

Antifertilizin of A and fertilizin of B are not compatible

C

Fertilizin of A and B are not compatible

D

Antifertilizin of A and B are not compatible

Question 49: Palette 49/391

Errorless KCET 2012 MCQ

The fourth cleavage plane during development of frog's egg is

A

Double meridional

B

Single meridional

C

Single latitudinal

D

Double latitudinal

Question 50: Palette 50/391

Errorless CBSE PMT (Mains) 2012 MCQ

Identify the human developmental stage shown below as well as the related right place of its occurrence in a normal pregnant woman, and select the right option for the two together Options

A

Development – Late morula, Site – Middle part of Fallopian tube

B

Development – Blastula, Site – End part of Fallopian tube

C

Development – Blastocyst, Site – Uterine wall

D

Development – 8-celled morula, Site – Starting point of Fallopian tube

Question 51: Palette 51/391

Errorless AIIMS 2012 MCQ

The 'cells of Rauber' are

A

Secretory cells of endometrium in uterus

B

Inner cell mass of blastocoel

C

Outer cells of trophoblast in contact with uterine wall

D

Cells of trophoblast, in contact with inner cell mass of blastocyst

Question 52: Palette 52/391

Errorless MP PMT 2012 MCQ

In human, embryo is protected in

A

Amniotic cavity

B

Peritoneal cavity

C

Pleural cavity

D

Allantois

Question 53: Palette 53/391

Errorless CBSE PMT (Pre.) 2011 MCQ

If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from

A

Vagina to uterus

B

Testes to epididymis

Question 54: Palette 54/391

Errorless CBSE PMT (Mains) 2011 MCQ

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs Or The time for optimum chances of conception in a women is starting from the day of menstruation [KCET 2012]

A

5th day

B

11th day

C

14th day

D

20th day

Question 55: Palette 55/391

Errorless CBSE PMT (Pre.) 2011 MCQ

The figure given below depicts a diagrammatic sectional view of the female reproductive system of humans. Which one set of three parts out of I-VI have been correctly identified

A

I Perimetrium, II Myometrium, III Fallopian tube

B

II Endometrium, III Infundibulum, IV Fimbriae

C

III Infundibulum, IV Fimbriae, V Cervix

D

IV Oviducal funnel, V Uterus, VI Cervix

Question 56: Palette 56/391

Errorless Kerala PMT 2011 MCQ

The main function of the fimbriae of the fallopian tube in females is to

A

Release to ovum from the Graafian follicle

B

Make necessary changes in the endometrium for implantation

C

Help in the development of corpus luteum

D

Help in the collection of the ovum after ovulation

E

Help in the development of ovary

Question 57: Palette 57/391

Errorless WB JEE 2011 MCQ

Name the hormone that has no role in menstruation

A

LH

B

FSH

C

GH

D

TSH

Question 58: Palette 58/391

Errorless KCET 2011 MCQ

Column I contains terms and Column II contains definitions. Match them correctly and choose the right answer

Column-I	Column-II
(A) Parturition (B) Gestation (C) Ovulation (D) Implantation (E) Conception	(P) Attachment of zygote to endometrium (Q) Release of egg from Graafian follicle (R) Delivery of baby from uterus (S) Duration between pregnancy and birth (T) Formation of zygote by fusion of the egg and sperm (U) Stoppage of ovulation and menstruation Options

A

A-Q, B-S, C-P, D-T, E-R

B

A-S, B-R, C-P, D-T, E-Q

C

A-T, B-P, C-Q, D-R, E-S

D

A-R, B-S, C-Q, D-P, E-T

Question 59: Palette 59/391

Errorless KCET 2011 MCQ

Animals which possess cleidoic eggs exhibit

A

External fertilization and internal development

B

Internal fertilization and internal development

C

Internal fertilization and external development

D

External fertilization and external development

Question 60: Palette 60/391

Errorless AIIMS 2011 MCQ

Assertion : Corpus luteum is produced by Graafian follicle after ovulation. Reason: Corpus luteum secretes progesterone which maintains the pregnancy.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 61: Palette 61/391

Errorless CBSE PMT (Mains) 2010 MCQ

Secretions from which one of the following are rich in fructose, calcium and some enzymes[NCERT Pg. No. 28]

A

Male accessory glands

B

Liver

C

Pancreas

D

Salivary glands

Question 62: Palette 62/391

Errorless MP PMT 2010 MCQ

The acrosome of a sperm contains

A

Hydrolytic enzymes

B

DNA

C

Mitochondria

D

Fructose

Question 63: Palette 63/391

Errorless KCET 2010 MCQ

In the absence of acrosome, the sperm ......

A

Cannot penetrate the egg

B

Cannot get energy

C

Cannot get food

D

Cannot swim

Question 64: Palette 64/391

Errorless AMU (Med.) 2010 MCQ

In humans the oocyte is maintained in a state of meiotic arrest by secretions of

A

Granulosa cells

B

Zona pellucida

C

Cumulus oophorus

D

Theca

Question 65: Palette 65/391

Errorless CBSE PMT (Mains) 2010 MCQ

In human female the blastocyst

A

Forms placenta even before implantation

B

Gets implanted into uterus 3 days after ovulation

C

Gets nutrition from uterine endometrial secretion only after implantation

D

Gets implanted in endometrium by the trophoblast cells

Question 66: Palette 66/391

Errorless CBSE PMT (Pre.) 2010 MCQ

The part of Fallopian tube closest to the ovary is [NCERT Pg. No. 29]

A

Ampulla

B

Isthmus

C

Infundibulum

D

Cervix

Question 67: Palette 67/391

Errorless CBSE PMT (Pre.) 2010; AIIMS 2011 MCQ

In vitro fertilization technique that involves transfer of which one of the following into the fallopian tube

A

Zygote only

B

Embryo only, upto 8 cell stage

C

Either zygote or early embryo upto 8 cell stage

D

Embryo of 32 cell stage

Question 68: Palette 68/391

Errorless CBSE PMT (Pre.) 2010 MCQ

Which one of the following statements about human sperm is correct

A

Acrosome serves no particular function

B

Acrosome has a conical pointed structure used for piercing and penetrating the egg, resulting in fertilization

C

The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization

D

Acrosome serves as a sensory structure leading the sperm towards to ovum

Question 69: Palette 69/391

Errorless CBSE PMT (Pre.) 2010 MCQ

The second maturation division of the mammalian ovum occurs

A

In the Graafian follicle following the first maturation division

B

Shortly after ovulation before the ovum makes entry into the fallopian tube

C

Until after the ovum has been penetrated by a sperm

D

Until the nucleus of the sperm has fused with that of the ovum

Question 70: Palette 70/391

Errorless MP PMT 2010 MCQ

The mammalian blastula is known as

A

Foetal blastula

B

Blastocyst

C

Trophoderm

D

Oolema

Question 71: Palette 71/391

Errorless CBSE PMT (Pre.) 2010 MCQ

Which one of the following statements about morula in humans is correct

A

It has more cytoplasm and more DNA than an uncleaved zygote

B

It has almost equal quantity of cytoplasm as an uncleaved zygote but much more DNA

C

It has far less cytoplasm as well as less DNA than in an uncleaved zygote

D

It has more or less equal quantity of cytoplasm and DNA as in uncleaved zygote

Question 72: Palette 72/391

Errorless DUMET 2010 MCQ

The internal cavity commonly formed by cell division prior to gastrulation is the

A

Enteron

B

Blastopore

C

Blastocoel

D

Coelom

Question 73: Palette 73/391

Errorless Kerala PMT 2010 MCQ

Human chorionic gonadotropin is secreted by Or In mammals the chorion and the allantois together form [MP PMT 1994]

A

Chorion

B

Amnion

C

Corpus luteum

D

Placenta

E

Ovaries

Question 74: Palette 74/391

Errorless DUMET 2010 MCQ

Which of the following induces parturition

A

Vasopressin

B

Oxytocin

C

GH

D

TSH

Question 75: Palette 75/391

Errorless Kerala PMT 2010 MCQ

The process of delivery of the foetus is called

A

Parturition

B

Implantation

C

Fertilisation

D

Lactation

E

Ovulation

Question 76: Palette 76/391

Errorless MP PMT 2010 MCQ

In a mesolecithal egg, one would expect

A

Meroblastic cleavage

B

Unequal holoblastic cleavage

C

Equal holoblastic cleavage

D

None of these

Question 77: Palette 77/391

Errorless AIIMS 2010 MCQ

Assertion : Only a single functional female gamete is formed from each primary oocyte cell. Reason: Meiosis in each primary oocyte gives rise to only one cell which functions as ovum.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 78: Palette 78/391

Errorless CBSE PMT 2009; CBSE PMT (Pre.) 2010 MCQ

Seminal plasma in humans is rich in

A

Fructose, calcium, certain enzymes

B

Fructose and calcium but has no enzymes

C

Glucose and certain enzymes but has no calcium

D

Fructose and certain enzymes but poor in calcium

Question 79: Palette 79/391

Errorless CBSE PMT 2009; NEET 2013 MCQ

The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testis is

A

Spermatocyte – spermatogonia – spermatid – sperms

B

Spermatogonia - spermatocyte - spermatid - sperms

C

Spermatid - spermatocyte - spermatogonia - sperms

D

Spermatogonia – spermatid - spermatocyte - sperms

Question 80: Palette 80/391

Errorless CBSE PMT 2009 MCQ

Given below is a diagrammatic sketch of a portion of human male reproductive system. Select the correct set of names of the parts labelled A, B, C, D

A

A - Ureter; B - Prostate; C - Seminal vesicle; D - Bulbourethral gland

B

A - Vas deferens; B - Seminal vesicle; C - Prostate; D - Bulbourethral gland

C

A - Vas deferens; B - Seminal vesicle; C - Bulbourethral gland; D - Prostate

D

A - Ureter; B - Seminal vesicle; C - Prostate; D - Bulbourethral gland

Question 81: Palette 81/391

Errorless CBSE PMT 2009 MCQ

Which one of the following is the correct matching of the events occurring during menstrual cycle

A

Ovulation : LH and FSH attain peak level and sharp fall in the secretion of progesterone

B

Proliferative phase : Rapid regeneration of myometerium and maturation of Graafian follicle

C

Development of corpus luteum : Secretory phase and increased secretion of progesterone

D

Menstruation : Breakdown of myometrium and ovum not fertilized

Question 82: Palette 82/391

Errorless KCET 2009 MCQ

Some important events in the human female reproductive cycle are given below. Arrange the events in a proper sequence A : Secretion of FSH B : Growth of corpus luteum C : Growth of the follicle and oogenesis D : Ovulation E : Sudden increase in the levels of LH

A

C → A → D → B → E

B

A → C → E → D → B

C

A → D → C → E → B

D

B → A → C → D → E

Question 83: Palette 83/391

Errorless KCET 2009 MCQ

Vitellogenesis occurs during the formation of

A

Primary oocyte in the Graafian follicle

B

Oogonial cell in the Graafian follicle

C

Ootid in the fallopian tube

D

Secondary oocyte in the fallopian tube

Question 84: Palette 84/391

Errorless AMU (Med.) 2009 MCQ

In females the hormone inhibin is secreted by

A

Granulosa and theca cells

B

Granulosa cells and corpus luteum

C

Granulosa and cumulus oophorus cells

D

Granulosa cells and zona pellucida

Question 85: Palette 85/391

Errorless KCET 2009 MCQ

2n = 16 in a primary spermatocyte which is in metaphase of first meiotic division. What shall be the total number of chromatids in each of the secondary spermatocyte

A

32

B

8

C

16

D

24

Question 86: Palette 86/391

Errorless AFMC 2009 MCQ

1st polar body is formed at which stage of oogenesis

A

1st meiosis

B

2nd mitosis

C

1st mitosis

D

Differentiation

Question 87: Palette 87/391

Errorless MP PMT 2009 MCQ

Development of an egg without fertilization is called

A

Gametogenesis

B

Metagenesis

C

Oogenesis

D

Parthenogenesis

Question 88: Palette 88/391

Errorless CBSE PMT 2009 MCQ

Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female

A

Fertilization of the ovum

B

Maintenance of the hypertrophical endometrial lining

C

Maintenance of high concentration of sex-hormones in the blood stream

D

Retention of well-developed corpus luteum

Question 89: Palette 89/391

Errorless NCERT; CBSE PMT 2009 MCQ

A change in the amount of yolk and its distribution in the egg will affect

A

Formation of zygote

B

Pattern of cleavage

C

Number of blastomeres produced

D

Fertilization

Question 90: Palette 90/391

Errorless EAMCET 2009 MCQ

The glycoprotein layer between oocytes and cuboidal cells in ovary of rabbit is

A

Membrana granulosa

B

Zona pellucida

C

Corpus luteum

D

Zona reticulata

Question 91: Palette 91/391

Errorless AIIMS 2009 MCQ

Which of the following hormones is secreted by implanted blastocyst, that acts on the corpus luteum in the ovary, stimulating the body to produce estrogens and progesterone to maintaining the uterine lining

A

Estrogen

B

HCG

C

Progesterone

D

Oxytocin

Question 92: Palette 92/391

Errorless CBSE PMT 2009 MCQ

Foetal ejection reflex in human female is induced by [NCERT Pg. No. 38]

A

Pressure exerted by amniotic fluid

B

Release of oxytocin from pituitary

C

Fully developed foetus and placenta

D

Differentiation of mammary glands

Question 93: Palette 93/391

Errorless AIIMS 2009 MCQ

Among the following stem cells, which are found in the umbilical cord

A

Embryonic stem cells

B

Adult stem cells

C

Cord blood stem cells

D

All of the above

Question 94: Palette 94/391

Errorless Odisha JEE 2008 MCQ

Spermatogenesis is promoted by

A

Oestrogen

B

Progesterone

C

Testosterone

D

Oxytocin

Question 95: Palette 95/391

Errorless Odisha JEE 2008, 12; MP PMT 2012 MCQ

Sperm cells are produced in

A

Seminiferous tubules

B

Interstitial cells

C

Epididymis

D

Prostate gland

Question 96: Palette 96/391

Errorless Odisha JEE 2008 MCQ

Human sperm moves by

A

Cilia

B

Flagella

C

Basal body

D

Nucleosome

Question 97: Palette 97/391

Errorless Odisha JEE 2008 MCQ

In oogenesis haploid egg is fertilized by sperm at which stage

A

Primary oocyte

B

Secondary oocyte

C

Oogonium

D

Ovum

Question 98: Palette 98/391

Errorless Kerala PMT 2008; KCET 2018 MCQ

Spermatids are transformed into spermatozoa by

A

Spermiation

B

Spermatogenesis

C

Meiosis

D

Spermatosis

E

Spermiogenesis

Question 99: Palette 99/391

Errorless Odisha JEE 2008 MCQ

In oogenesis a diploid cell produceovum/ova

A

1

B

2

C

3

D

4

Question 100: Palette 100/391

Errorless CBSE PMT 2008; BHU 2012 MCQ

Which extraembryonic membrane in humans prevents desiccation of the embryo inside the uterus

A

Yolk sac

B

Amnion

C

Chorion

D

Allantois

Question 101: Palette 101/391

Errorless KCET 2007 MCQ

Which accessory genital gland occurs only in mammalian male

A

Prostate gland

B

Perineal gland

C

Cowper's gland

D

Bartholin gland

Question 102: Palette 102/391

Errorless GUJCET 2007 MCQ

Inhibition of secretion of which of the following hormone is necessary for disintegration of corpus luteum

A

LH

B

Progesterone

C

LTH

D

FSH

Question 103: Palette 103/391

Errorless NCERT; CBSE PMT 2007 MCQ

After ovulation the Graafian follicle becomes an endocrine organ called

A

Interstitial organ

B

Ovarian tube

C

Globulin

D

Fibrin

Question 104: Palette 104/391

Errorless DPMT 2007; NEET 2017 MCQ

Capacitation of sperms occurs in

A

Female genital tract

B

Vas deferens

C

Vas efferens

D

Vagina

Question 105: Palette 105/391

Errorless DPMT 2007 MCQ

Fertilization of sperm and ova takes place in

A

Ampulla of oviduct

B

Isthmus of oviduct

C

Fimbriae of oviduct

D

None of these

Question 106: Palette 106/391

Errorless Kerala PMT 2007 MCQ

Find out the wrong statement

A

Amnion is the outer layer containing amniotic fluid that acts as shock absorber to the soft embryo

B

Yolk-sac is a foetal membrane that helps in the nourishment of the embryo in general

C

In mammals allantois is not excretory in function

D

Choroi-allantoic membrane develops villi and contribute much to the development of placenta

E

Amnion and chorion develop as upward projecting folds of somatopleure called amniotic folds

Question 107: Palette 107/391

Errorless KCET 2007 MCQ

Assertion : All Metatherian are placental mammals. Reason: All placental mammals have menstrual cycle.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 108: Palette 108/391

Errorless KCET 2006 MCQ

Which of the following represents a condition where the motility of the sperms is highly reduced

A

Oligospermia

B

Athenospermia

C

Azoospermia

D

Polyspermy

Question 109: Palette 109/391

Errorless CBSE PMT 2006; DPMT 2007 MCQ

Sertoli cells are regulated by the pituitary hormone known as

A

Prolactin

B

LH

C

FSH

D

GH

Question 110: Palette 110/391

Errorless CBSE PMT 2006 MCQ

Withdrawal of which of the following hormones is the immediate cause of menstruation

A

FSH-RH

B

Progesterone

C

Estrogen

D

FSH

Question 111: Palette 111/391

Errorless MP PMT 2006 MCQ

How many secondary spermatocytes will be required to form 400 spermatozoans

A

100

B

200

C

40

D

400

Question 112: Palette 112/391

Errorless MH CET 2006; CPMT 2009 MCQ

Which layer develops first during embryonic development

A

Ectoderm

B

Mesoderm

C

Endoderm

D

Both

Question 113: Palette 113/391

Errorless KCET 2006 MCQ

Which of the following are secretion produced by the spermatozoa at the time of fertilization

A

Fertilizin and antifertilizin

B

Antifertilizin and spermlysin

C

Aertilizin and spermlysin

D

Only spermlysin

Question 114: Palette 114/391

Errorless BHU 2006; MHCET 2015 MCQ

The embryo at 16 celled stage is known as Or Egg undergoes cleavage and forms [RPMT 1995]

A

Morula

B

Gastrula

C

Blastula

D

Blastomere

Question 115: Palette 115/391

Errorless DPMT 2006 MCQ

The Wolffian duct gives rise to

A

Scrotum

B

Labia major

C

Both

D

Epididymis

Question 116: Palette 116/391

Errorless Kerala PMT 2005; CBSE PMT (Pre.) 2011 MCQ

The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for

A

Providing a secondary sexual feature for exhibiting the male sex

B

Maintaining the scrotal temperature lower than the internal body temperature

C

Escaping any possible compression by the visceral organs

D

Providing more space for the growth of epididymis

Question 117: Palette 117/391

Errorless HPMT 2005 MCQ

Graafian follicle are characteristically found in the

A

Thyroid of mammal

B

Ovary of frog

C

Testis of mammal

D

Ovary of mammal

Question 118: Palette 118/391

Errorless Wardha 2005 MCQ

Ovulation in mammals is caused by [NCERT Pg. No. 35]

A

FSH and TSH

B

FSH and LH

C

FSH and LTH

D

LTH and LH

Question 119: Palette 119/391

Errorless AIIMS 2005 MCQ

Which one of the following events is correctly matched with the time period in a normal menstrul cycle

A

Release of egg : 5th day

B

Endometrium regenerates : 5 – 10 days

C

Endometrium secretes nutrients for implantation : 11- 18 days

D

Rise in progesterone level : 1 – 15 days

Question 120: Palette 120/391

Errorless Manipal 2005 MCQ

Aldosterone is secreted by

A

Zona glomerulosa

B

Zona fasciculata

C

Zona reticularis

D

Zona pellucida

Question 121: Palette 121/391

Errorless HP PMT 2005 MCQ

In human females ova are produced in

A

Ovarian follicles

B

Oviduct

C

Uterus

D

Vagina

Question 122: Palette 122/391

Errorless Manipal 2005 MCQ

The rupture of the graafian follicle and the release of ovum occurs under the influence of

A

LH

B

FSH

C

MSH

D

GH

Question 123: Palette 123/391

Errorless Manipal 2005; RPMT 2006 MCQ

Sperm's acrosome has

A

Hyaluronic acid and proacrosine

B

Hyaluronic acid and fertilizin

C

Hyaluronidase and proacrosin

D

Fertilizin and proacrosin

Question 124: Palette 124/391

Errorless AIIMS 2005 MCQ

A cross section at the midpoint of the middle piece of a human sperm will show

A

Centriole, mitochondria and 9+2 arrangement of microtubules

B

Centriole and mitochondria

C

Mitochondria and 9+2 arrangement of microtubules

D

9+2 arrangement of microtubules only

Question 125: Palette 125/391

Errorless CPMT 2005 MCQ

Sperms formed from 4 primary spermatocytes are

A

4

B

1

C

16

D

32

Question 126: Palette 126/391

Errorless Manipal 2005 MCQ

Hormone responsible for metamorphosis in tadpole is

A

Adrenaline

B

Thyroxine

C

Aldasterone

D

Vasopressin

Question 127: Palette 127/391

Errorless Kerala CET 2005 MCQ

Match the following with correct combination

Column-I	Column-II
(A) Hyaluronidase (B) Corpus luteum (C) Gastrulation (D) Capacitation (E) Colostrum	(P) Acrosomal reaction (Q) Morphogenetic movements (R) Progesterone (S) Mammary gland (T) Sperm activation

A

A-T, B-Q, C-S, D-P, E-R

B

A-P, B-R, C-Q, D-T, E-S

C

A-P, B-Q, C-R, D-S, E-T

D

A-S, B-Q, C-T, D-S, E-P

Question 128: Palette 128/391

Errorless BHU 2005; MP PMT 2007 MCQ

Which is immortal

A

Plasma cell

B

Germ cell

C

Brain cell

D

Kidney cell

Question 129: Palette 129/391

Errorless CPMT 2005 MCQ

Which one of the following parts serves the function of primary organizer in frog

A

Dorsal lip of gastrula

B

Grey crescent area of frog

C

Chorda-mesoderm of gastrula

D

All of these

Question 130: Palette 130/391

Errorless BHU 2005 MCQ

The role of placenta is

A

To convey nerve impulses

B

To act as storage organ

C

To protect embryo from shocks

D

To provide nutrition for developing embryo

Question 131: Palette 131/391

Errorless HPMT 2005 MCQ

Placenta produced which hormone

A

ACTH

B

Progesterone

C

GH

D

Gastrin

Question 132: Palette 132/391

Errorless MHCET 2004 MCQ

Heterogametic male condition does not occur in

A

Birds

B

Humans

C

Drosophila

D

Honey bee

Question 133: Palette 133/391

Errorless MHCET 2004 MCQ

Cauda epididymis leads to

A

Vas efferens

B

Vas deferens

C

Ejaculatory duct

D

Rete testis

Question 134: Palette 134/391

Errorless AFMC 2004 MCQ

In which of the following organism testes descends into scrotum in breeding season but in non-breeding season goes up

A

Frog

B

Kangaroo

C

Shrew

D

Bat

Question 135: Palette 135/391

Errorless MHCET 2004 MCQ

ICSH acts on

A

Spermatogonia

B

Nurse cells

C

Leydig cells

D

Primary spermatocytes

Question 136: Palette 136/391

Errorless Kerala PMT 2004 MCQ

In the diagram of section of Graafian follicle, different parts are indicated by alphabets; choose the answer in which these alphabets have been correctly matched with the parts they indicate......

A

A = Theca externa, B= Theca interna, C= Ovum, D = Cumulus oophorus, E = Antrum, F = Membrana granulosa

B

A= Membrana granulosa, B = Theca externa, C = Ovum, D= Cumulus oophorus, E= Antrum, F = Theca interno

C

A= Membrana granulosa, B= Theca interna, C= Ovum, D= Cumulus oophorus, E= Anturm, F= Theca externa

D

A= Theca externa, B= Theca interna, C= Ovum, D= Membrana granulosa, E= Anturum, F= Cumulus oophorus

Question 137: Palette 137/391

Errorless Kerala PMT 2004 MCQ

Proliferation of endometrium of uterus in controlled by

A

Relaxin

B

Oxytocin

C

Progesterone

D

Oestrogen

E

Luteinizing

Question 138: Palette 138/391

Errorless CBSE PMT 2004 MCQ

Ovulation in the human female normally takes place during the menstrual cycle [NCERT Pg. No. 34]

A

At the beginning of the proliferative phase

B

At the end of the proliferative phase

C

At the mid secretory phase

D

Just before the end of the secretory phase

Question 139: Palette 139/391

Errorless Odisha JEE 2004 MCQ

Sequence of hormones during menstrual cycle is

A

Oestrogen, progesterone and FSH

B

Progesterone, oestrogen and FSH

C

FSH, oestrogen and progesterone

D

FSH, progesterone and oestrogen

Question 140: Palette 140/391

Errorless KCET 2004 MCQ

Nebenkern is a part of

A

Foetus

B

Graafian follicle

C

Human ovum

D

Human sperm

Question 141: Palette 141/391

Errorless 2004 MCQ

Acrosome of sperm is formed from {MP PMT 2004; CPMT 2005; MH CET 2005; AMU (Med.) 2006; Odisha JEE 2012]

A

Nucleus of spermatid

B

Mitochondria of spermatid

C

Golgi complex of spermatid

D

Centrosome of spermatid

Question 142: Palette 142/391

Errorless MHCET 2004; Manipal 2005 MCQ

What do you mean by the term spermateleosis

A

Conversion of spermatids to sperm

B

Conversion of spermogonium to spermatid

C

Conversion of spermatid to spermogonium

D

Conversion of primary spermatocyte to secondary spermatocyte

Question 143: Palette 143/391

Errorless AIEEE Pharmacy 2004 MCQ

The sperm penetrates the ovum mainly

A

Mechanically

B

Chemically

C

Electrostatically

D

Thermally

Question 144: Palette 144/391

Errorless CPMT 2004 MCQ

The origin of kidney and ureter in Rana tigrina is

A

All mesodermal

B

All endodermal

C

Ectodermal and mesodermal

D

Mesodermal and endodermal

Question 145: Palette 145/391

Errorless MHCET 2004 MCQ

Pituitary gland is derived from

A

Ectoderm

B

Endoderm

C

Mesoderm

D

None of these

Question 146: Palette 146/391

Errorless MHCET 2003 MCQ

In most mammals, the testes are located in scrotal sac for

A

Spermatogenesis

B

Sex differentiation

C

More space to visceral organs

D

Indepndent functioning of kidney

Question 147: Palette 147/391

Errorless DPMT 2003; MP PMT 2009 MCQ

Menstruation is due to sudden Or In human females, the ovarian cycle begins when the [J & K CET 2012]

A

Reduction of FSH

B

Increase of LH

C

Reduction in estrogen and progesterone

D

None of these

Question 148: Palette 148/391

Errorless CBSE PMT 2003 MCQ

Bartholin's glands are situated

A

On either side of vas deferens in humans

B

On the sides of the head of frog

C

At the reduced tail end of birds

D

On either side of vagina in humans

Question 149: Palette 149/391

Errorless AIIMS 2003, 08, 13 MCQ

Both corpus luteum and macula lutea are

A

Found in human ovaries

B

A source of hormones

C

Characterized by a yellow colour

D

Contributory in maintaining pregnancy

Question 150: Palette 150/391

Errorless BHU 2003 MCQ

In frog chromosome no. is reduced to half

A

When 2dpolar body is separated

B

When 2dpolar body is divided

C

When 3rd polar body is separated

D

When 1st polar body is separated

Question 151: Palette 151/391

Errorless AFMC 2003; HPMT 2005 MCQ

The process of maturation of reproductive cells of testes in male so as to form the male gamete or sperm is known as

A

Spermatogenesis

B

Gametogenesis

C

Oogenesis

D

None of these

Question 152: Palette 152/391

Errorless DPMT 2003 MCQ

Fertilization is depicted by the condition

A

n → 2n

B

2n → 3n

C

2n → 4n

D

4n → 8n

Question 153: Palette 153/391

Errorless MHCET 2003 MCQ

The egg found in monotremata is Or The eggs of ovoviviparous species are [MP PMT 2013]

A

Microlecithal

B

Mesolecithal

C

Macrolecithal

D

None of these

Question 154: Palette 154/391

Errorless AlIMS 2003 MCQ

Which one of the following statements with regard to embryonic development in humans is correct

A

Cleavage division bring about considerable increase in the mass of protoplasm

B

In the second cleavage division, one of the two blastomeres usually divides a little sooner than the second

C

With more cleavage divisions, the resultant blastomeres become larger and larger

D

Cleavage division results in a hollow ball of cells called morula

Question 155: Palette 155/391

Errorless MH CET 2003; MP PMT 2006, 10 MCQ

The cavity, which formed during gastrulation is named as

A

Blastocoel

B

Archenteron

C

Coelom

D

Pseudocoel

Question 156: Palette 156/391

Errorless Kerela CET 2003 MCQ

The main function of tropho ectoderm in mammalian embryo is

A

Protection of the developing cells

B

Drawing food for the developing cells

C

Formation of yolk sac

D

Formation of body of developing embryo

Question 157: Palette 157/391

Errorless CBSE PMT 2003; CPMT 2005 MCQ

During embryonic development, the establishment of polarity along anterior/ posterior, dorsal/ventral or medial/lateral axis is called

A

Pattern formation

B

Organizer phenomena

C

Axis formation

D

Anamorphosis

Question 158: Palette 158/391

Errorless AIIMS 2003; MP PMT 2011 MCQ

The phase of menstrual cycle in humans that last for 7-8 days is

A

Follicular phase

B

Ovulatory phase

C

Luteal phase

D

Menstruation

Question 159: Palette 159/391

Errorless AFMC 2002, 12; CBSE PMT (Pre.) 2010; J & K CET 2012 MCQ

Sertoli cells are found in

A

Pancreas and secrete cholecystokinin

B

Ovaries and secrete progesterone

C

Adrenal cortex and secrete and adrenaline

D

Seminiferous tubules and provide nutrition to germ cells

Question 160: Palette 160/391

Errorless Odisha JEE 2002 MCQ

In human female which of the following is incorrect

A

Menstrual cycle takes 28 days

B

Menopause occur at 45-55 years

C

The ovulated egg released during pregnancy die

D

Menstruation takes 4 days

Question 161: Palette 161/391

Errorless CBSE PMT 2002 MCQ

If both ovaries are removed from a rat, then which hormone is decreased in blood

A

Oxytocin

B

Oestrogen

C

Prolactin

D

Gonadotrophic

Question 162: Palette 162/391

Errorless NCERT; MP PMT 2002, 07 MCQ

In mammals the female secondary (accessory) sexual characters are developed by the hormone Or Development of secondary sexual characters in females are controlled by [MP PMT 1996, 99, 2003]

A

Relaxin

B

Oestrogens

C

Progesterone

D

Gonadotropins

Question 163: Palette 163/391

Errorless RPMT 2002 MCQ

In which of the following animal cleavage divisions are restricted to a small part of cytoplasm and nucleus in animal pole of egg

A

Cockroach

B

Frog

C

Chick

D

Rabbit

Question 164: Palette 164/391

Errorless JIPMER 2002 MCQ

The blastopore develops into future

A

Mouth

B

Ear

C

Anus

D

Neuropore

Question 165: Palette 165/391

Errorless Odisha PMT 2002 MCQ

Select the correct statement

A

Cleavage follows gastrulation

B

Yolk content of egg has no role in cleavage

C

Cleavage is repeated mitotic division of zygote

D

Gastrulation & blastulation are followed by each other

Question 166: Palette 166/391

Errorless MP PMT 2002 MCQ

The number of foetal membranes in man is

A

2

B

3

C

4

D

0

Question 167: Palette 167/391

Errorless MP PMT 2002, 03 MCQ

In man the foetal membrane which forms the intimate connection with the uterine tissue is

A

Amnion only

B

Chorion only

C

Allantois only

D

Allanto-chorionic structure

Question 168: Palette 168/391

Errorless MP PMT 2002, 12, 13 MCQ

The type of placenta found in human beings and Rabbit is of type

A

Diffuse

B

Zonary

C

Cotyledonary

D

Discoidal

Question 169: Palette 169/391

Errorless RPMT 2002 MCQ

Which of the following is not correct for gastrulation

A

Archenteron is formed

B

All germinal layers are formed

C

Morphogenetic movements

D

Some blastomeres and blastocoel degenerate

Question 170: Palette 170/391

Errorless BHU 2001 MCQ

Phallic organs in cockroach are related to

A

Male excretory system

B

Male reproductive system

C

Female excretory system

D

Female reproductive system

Question 171: Palette 171/391

Errorless KCET 2001; MH CET 2006 MCQ

The cavity present in the graafian follicle is

A

Amniotic cavity

B

Archenteron

C

Antrum

D

Ostium

Question 172: Palette 172/391

Errorless AIMS 2001 MCQ

Cessation of menstrual cycle in the human female is known as

A

Ovulation

B

Puberty

C

Menopause

D

Maturation

Question 173: Palette 173/391

Errorless AFMC 2001 MCQ

The cyclic period of sexual activity in non-human female mammals is called

A

Menstruation

B

Luteinization

C

Oogenesis

D

Estrous

Question 174: Palette 174/391

Errorless MP PMT 2001 MCQ

In human females at the time of birth there are two million ova: how many of them normally reach maturity in the course of normal reproductive life

A

500

B

1,000

C

2,000

D

5,000

Question 175: Palette 175/391

Errorless RPMT 2001 MCQ

Parturition duct in female is called

A

Uterus

B

Oviduct

C

Vagina

D

Cervix

Question 176: Palette 176/391

Errorless MHCET 2001; AFMC 2010 MCQ

In mammalian sperm, spirally arranged mitochondria are present in [NCERT Pg. No. 32]

A

Head portion

B

Middle piece

C

End piece of the tail

D

Principal piece of tail

Question 177: Palette 177/391

Errorless MP PMT 2001; KCET 2001 MCQ

The sperm produces substances of enzymatic nature called sperm lysin. In mammals, it is called

A

Hyaluronidase

B

Hyaluranic acid

C

Androgamone

D

Cryanogamone

Question 178: Palette 178/391

Errorless RPMT 2001 MCQ

In frog equal holoblastic cleavage does not found due to

A

A dark pigment in animal pole

B

Heavy yolk in vegetal pole

C

Yolk concentrated in center of egg

D

Nucleus is assymetrical in position

Question 179: Palette 179/391

Errorless RPMT 2001 MCQ

Cledoic egg is an adaptation to

A

Aquatic life

B

Marine life

C

Terrestrial life

D

Aerial life

Question 180: Palette 180/391

Errorless RPMT 2001; MP PMT 2003 MCQ

Microlecithal eggs are found in

A

Reptilia + Aves

B

Amphibia + Aves + Reptilia

C

Reptilia + Aves + Chiroptera

D

Eutheria

Question 181: Palette 181/391

Errorless RPMT 2001 MCQ

In mammals egg are microlecithal and isolecithal because these are The animals in which complete embryo develops in the mother's body through placenta are

A

Oviparous

B

Viviparous

C

Ovoviviparous

D

None of these

Question 182: Palette 182/391

Errorless RPMT 2001 MCQ

Extra embryonic membrane amnion is not found in amphibians because

A

They lay eggs in water

B

Egg hatches in tadpole

C

Amphibious habit

D

They have smooth skin

Question 183: Palette 183/391

Errorless RPMT 2001, 02 MCQ

The region where sperm enters the egg is called

A

Equator

B

Receptor cone

C

Animal pole

D

Vegetal pole

Question 184: Palette 184/391

Errorless RPMT 2001 MCQ

Which statement is correct for fertilization

A

Restore Euploidy

B

Brings male & female gametes together

C

Entry of whole sperm in egg

D

All of these

Question 185: Palette 185/391

Errorless RPMT 2001 MCQ

When centrolecithal egg of the insects divides regularly then what will happen

A

Cells surround the yolk

B

Yolk surround the cells

C

Yolk lie below the group of cells

D

Yolk lie above the group of cells

Question 186: Palette 186/391

Errorless Pb. PMT 2000 MCQ

Which of the following is the endocrine tissue of testes

A

Interstitial cells or cells of Leydig

B

Cells of the germinal epithelium

C

Sertoli cells

D

Secondary spermatocytes

Question 187: Palette 187/391

Errorless KCET 2000; CPMT 2000; BHU 2004, 06 MCQ

In rabbit, head of the epididymis present at the head of the testis is called

A

Vas deferens

B

Cauda epididymis

C

Gubernaculum

D

Caput epididymis

Question 188: Palette 188/391

Errorless MP PMT 2000 MCQ

Cervix lies between

A

Oviduct and uterus

B

Uterus and vagina

C

Vagina and clitoris

D

Clitoris and labia

Question 189: Palette 189/391

Errorless KCET 2000 MCQ

In woman cessation of menstruation occurs at the age of

A

12-14 years

B

45–58 years

C

60 years

D

Does not occur at all

Question 190: Palette 190/391

Errorless BHU 2000 MCQ

In the 28 day human ovarian cycle, the ovulation takes place typically on

A

Day 1 of the cycle

B

Day 5 of the cycle

C

Day 14 of the cycle

D

Day 28 of the cycle

Question 191: Palette 191/391

Errorless MHCET 2000; CPMT 2003 MCQ

The rule of embryonic development was given by

A

Von baer

B

Haeckel

C

Wallace

D

Morgan

Question 192: Palette 192/391

Errorless RPMT 2000 MCQ

The fertilization membrane during fertilization is synthesized by

A

Mitochondria

B

Golgi bodies

C

Acid mucopolysaccharides of cortical granules

D

All the above

Question 193: Palette 193/391

Errorless RPMT 2000; BVP 2004 MCQ

Cockroach egg is called as

A

Microlecithal

B

Macrolecithal

C

Isolecithal

D

Centrolecithal

Question 194: Palette 194/391

Errorless RPMT 2000 MCQ

In indeterminate cleavage the fate of blastomeres is fixed at which of the following stage Or Embryologists can presume the future organs of the embryo in [CBSE PMT 1993]

A

Blastula

B

Gastrulation

C

32-celled stage

D

64-celled stage

Question 195: Palette 195/391

Errorless MP PMT 2000 MCQ

Vegetal hemisphere of egg consists of

A

Yolk

B

Pigment

C

Grey crescent

D

Germinal vesicle

Question 196: Palette 196/391

Errorless BHU 2000 MCQ

Coelom is found between the cavity of

A

Ectoderm and endoderm

B

Mesoderm and ectoderm

C

Body wall and ectoderm

D

Mesoderm and body wall

Question 197: Palette 197/391

Errorless RPMT 2000 MCQ

In Pheretima mouth develops from which of the following

A

Mesoderm

B

Ectoderm

C

Blastopore

D

Endoderm

Question 198: Palette 198/391

Errorless RPMT 1999; HPMT 2005; MP PMT 2007; Odisha JEE 2010 MCQ

Sertoli cells are found in testis. These cells are

A

Nurse cell

B

Reproductive cell

C

Receptor cell

D

None of these

Question 199: Palette 199/391

Errorless AFMC 1999 MCQ

Bidder's canal is found in

A

Testes of frog

B

Kidney of frog

C

Ovary of mammal

D

Kidney of mammal

Question 200: Palette 200/391

Errorless MP PMT 1999 MCQ

Fallopian tube is the part of Or Mullerian duct is [MP PMT 2000; AFMC 2012]

A

Uterus

B

Ureter

C

Oviduct

D

Vas deferens

Question 201: Palette 201/391

Errorless RPMT 1999 MCQ

The substance secreted by the corpus luteum is

A

Hormone

B

Enzyme

C

Pheromone

D

Bile

Question 202: Palette 202/391

Errorless MP PMT 1999, 2001 MCQ

In mammals the oestrogens are secreted by the Graafian follicle from its

A

External theca

B

Internal theca

C

Zona Pellucida

D

Corona radiata

Question 203: Palette 203/391

Errorless CPMT 1999; JIPMER 2001 MCQ

How many ova and sperms would be produced from 100 secondary oocytes and 100 secondary spermatocytes during gametogenesis in human

A

100 ova, 100 sperms

B

100 ova, 200 sperms

C

50 ova, 100 sperms

D

200 ova, 200 sperms

Question 204: Palette 204/391

Errorless MP PMT 1999 MCQ

The process by which ova are formed is known as Or Rupturing of follicles and discharge of ova is known as Or Polar bodies are formed during [MP PMT 2010]

A

Oogenesis

B

Ovulation

C

Oviposition

D

Oviparity

Question 205: Palette 205/391

Errorless MP PMT 1999 MCQ

In which stage blastocoel is formed Or In which stage of development the embryonic cells form the germinal layers by the movement [RPMT 2001]

A

Morula

B

Blastula

C

Gastrula

D

None of these

Question 206: Palette 206/391

Errorless RPMT 1999 MCQ

The structure which differentiate gastrula from blastula

A

3 germ layers

B

Micromeres

C

Blastocoel

D

None of these

Question 207: Palette 207/391

Errorless Pb. PMT 1999 MCQ

In the development of the human body, the ectoderm is responsible for the formation of

A

Sweat glands

B

Nervous system

C

Lens of the eye

D

All of these

Question 208: Palette 208/391

Errorless AIIMS 1999 MCQ

Cumulus covers

A

Ovary

B

Ovum

C

Embryo

D

All of these

Question 209: Palette 209/391

Errorless CPMT 1999; JIPMER 2001 MCQ

Cleavage is a unique form of mitotic cell division in which

A

The nucleus does not participate

B

There is no growth of cells

C

No spindle develops to guide the cells

D

The plasma membranes of daughter cells do not separate

Question 210: Palette 210/391

Errorless MP PMT 1998; BVP 2004; Odisha JEE 2011 MCQ

The seminiferous tubules of the testis are lined by the germinal epithelium consisting of

A

Cells of Sertoli

B

Spermatocytes

C

Spermatogonium

D

Spermatids

Question 211: Palette 211/391

Errorless NCERT; CPMT 1998; MP PMT 2010; Odisha JEE 2012 MCQ

Cells of leydig are found in

A

Kidney of rabbit

B

Kidney of frog

C

Testis of frog

D

Testis of rabbit

Question 212: Palette 212/391

Errorless MP PMT 1998 MCQ

Fimbriated funnel is

A

Proximal part of oviduct

B

Uterus part

C

Urinary bladder part

D

Ureter part

Question 213: Palette 213/391

Errorless Pune CET 1998 MCQ

Prepubertal period refers to a stage of

A

Growth enlargement of organ systems and maturation of reproductive mechanisms

B

Initiation of gonads

C

Initiation of organs

D

Maturation of gonads alone

Question 214: Palette 214/391

Errorless Pune CET 1998 MCQ

The period of preparation with reference to developmental phenomena in vertebrates means

A

Formation of gastrula

B

Formation of germ layers

C

Tissue differentiation

D

Parents preparation and elaboration of gametes

Question 215: Palette 215/391

Errorless Pune CET 1998 MCQ

Embryonic body form stage is characterised by

A

Basic body plan emerging

B

Miniature adult features

C

Stage of development resembling other species

D

Tissues not fully formed

Question 216: Palette 216/391

Errorless MP PMT 1998 MCQ

Oogenesis comprises

A

Multiplication phase

B

Growth phase

C

Maturation phase

D

All the above

Question 217: Palette 217/391

Errorless MP PMT 1998; CPMT 2005; PET (Pharmacy) 2013 MCQ

Pattern of cleavage in frog's egg is

A

Holoblastic

B

Holoblastic and unequal

C

Holoblastic and equal

D

All of the above

Question 218: Palette 218/391

Errorless AIIMS 1998 MCQ

Eggs having yolk in their centre of cytoplasm in peripheral layer are called

A

Isolecithal

B

Microlecithal

C

Centrolecithal

D

Telolecithal

Question 219: Palette 219/391

Errorless MP PMT 1998 MCQ

The yolk plug of gastrula represents in the later stage its

A

Anterior end

B

Posterior end

C

Dorsal side

D

Ventral side

Question 220: Palette 220/391

Errorless CPMT 1998; MHCET 2002 MCQ

Eye is developed from Or Internal Ear develops from Or Neural canal develops from [Bihar MDAT 1995]

A

Ectoderm

B

Mesoderm

C

Endoderm

D

Ecto-endoderm

Question 221: Palette 221/391

Errorless AIIMS 1998; MP PMT 1994 MCQ

The placenta of human beings belong to the category of

A

Haemo-chorialis

B

Syndesmo-chorialis

C

Endothelio-chorialis

D

Epithelio-chorialis

Question 222: Palette 222/391

Errorless MP PMT 1998 MCQ

The point of sperm entry during fertilization forms

A

Centre of rotation of embryo

B

Axis of cleavage

C

Grey crescent

D

Dorsal lip of blastopore

Question 223: Palette 223/391

Errorless MP PMT 1998 MCQ

Blastopore is found in

A

Blastula and is opening of archenteron

B

Blastula and is opening of blastocoel

C

Gastrula and is opening of archenteron

D

Gastrula and is opening of blastocoel

Question 224: Palette 224/391

Errorless KCET 1998 MCQ

Meroblastic cleavage refers to one of the following types of division of eggs

A

Total

B

Partial

C

Spiral

D

Horizontal

Question 225: Palette 225/391

Errorless AFMC 1997; KCET 2001; CPMT 2003, 09; Kerala CET 2003; Odisha JEE 2012 MCQ

Which of the following cells are present in mammalian testes and help to nourish sperms

A

Interstitial cells of Leydig

B

Sertoli cells

C

Granular cells

D

Phagocytes

Question 226: Palette 226/391

Errorless CBSE PMT 1997; Manipal 2005; MH CET 2015 MCQ

Fertilizin is a chemical substance produced from

A

Mature eggs (Ovum)

B

Acrosome

C

Polar bodies

D

Middle piece of sperm

Question 227: Palette 227/391

Errorless MP PMT 1997, 98; 2000 MCQ

The fifth cleavage of the fertilized egg of frog results in the formation of

A

16 cells

B

48 cells

C

64 cells

D

32 cells

Question 228: Palette 228/391

Errorless MP PMT 1997 MCQ

The third phase in the development of a mammal is

A

Cleavage

B

Gastrulation

C

Gametogenesis

D

Fertilization

Question 229: Palette 229/391

Errorless DPMT 1997 MCQ

Which of the following develops from ectoderm

A

Spinal cord and brain

B

Liver and heart

C

Notochord and vertebral column

D

Eye and skin

Question 230: Palette 230/391

Errorless MP PMT 1997, 2000 MCQ

How many eggs will be formed from 100 primary oocytes

A

300

B

400

C

200

D

100

Question 231: Palette 231/391

Errorless MP PMT 1997 MCQ

Blastocyst is a modified blastula of

A

Placental mammals

B

Frog

C

Fish

D

Birds

Question 232: Palette 232/391

Errorless AIIMS 1997 MCQ

Assertion : In morula stage, cells divide without increase in size. Reason: Zona pellucida remain undivided till cleavage is complete.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 233: Palette 233/391

Errorless AIIMS 1997 MCQ

Assertion : During fertilization only head of spermatozoa enters egg. Reason: If several spermatozoa hit the egg at same time, all can enter the egg.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 234: Palette 234/391

Errorless MP PMT 1996, 99 MCQ

Movement of sperm is done by

A

Tail

B

Head

C

Acrosome

D

Middle piece

Question 235: Palette 235/391

Errorless MP PMT 1996, 97, 99 ; MHCET 2002 MCQ

The cleavage having incomplete division (partial cleavage) of egg is known as

A

Holoblastic

B

Meroblastic

C

Meridional

D

Spiral

Question 236: Palette 236/391

Errorless MP PMT 1996 MCQ

Which cavity arises by the invagination of endoderm and mesoderm

A

Coelenteron

B

Archenteron

C

Pseudocoel

D

Coelom

Question 237: Palette 237/391

Errorless CBSE PMT 1996 MCQ

True coelom is a space between the body wall and alimentary canal. It is lined by

A

Mesoderm on one side and ectoderm on the other side

B

Endoderm on one side and ectoderm on the other side

C

Mesoderm on both the sides

D

Ectoderm on both the sides

Question 238: Palette 238/391

Errorless MP PMT 1996, 99 MCQ

Function of allantois in mammal is

A

Respiration only

B

Excretion

C

Nutrition, excretion and respiration

D

Protection from shocks

Question 239: Palette 239/391

Errorless MP PMT 1996 MCQ

The eutherian placenta is derived from or In mammals placenta is formed by

A

Yolk sac

B

Amnion

C

Allantois

D

Chorion allantois

Question 240: Palette 240/391

Errorless MP PMT 1996, 2002 MCQ

Atretic follicles are found in the

A

Liver

B

Testis

C

Thymus

D

Ovary

Question 241: Palette 241/391

Errorless MP PMT 1996, 98 MCQ

Ontogenetically liver and pancreas are or During embryonic development pancreas and liver develop from which germinal layer Or In both chordates and non-chordates intestine develops from [RPMT 2000]

A

Ectoderm

B

Mesoderm

C

Endoderm

D

Blastopore

Question 242: Palette 242/391

Errorless MP PMT 1995 MCQ

Testes in rabbit are

A

Inside the body

B

On the sides of the kidneys

C

In scrotal sacs

D

On either side of dorsal aorta

Question 243: Palette 243/391

Errorless MP PMT 1995 MCQ

In sexually reproducing animals the union of male and female gamete forms a cell which is called

A

Ovarian cell

B

Oocyte

C

Zygote

D

Graafian follicle

Question 244: Palette 244/391

Errorless MP PMT 1995 MCQ

The term blastocyst is applied to the blastula of which one of the following

A

Kangaroo

B

Platypus

C

Monkey

D

Both kangaroo and monkey

Question 245: Palette 245/391

Errorless Bihar MDAT 1995; MHCET 2004 MCQ

Telolecithal eggs have

A

Equal distribution of yolk

B

Average amount of yolk

C

Yolk present at a distance from nucleus

D

No yolk

E

All the above

Question 246: Palette 246/391

Errorless RPMT 1995 MCQ

Egg which contains very little amount of yolk are called as Or Human eggs are [CBSE PMT 1991, 93; MP PMT 1997, 99, 2000, 02; RPMT 1999; Pb. PMT 1999]

A

Microlecithal

B

Megalecithal

C

Telolecithal

D

Isolecithal

Question 247: Palette 247/391

Errorless RPMT 1995 MCQ

Cleavage is found in [NCERT Pg. No. 36]

A

Zygote

B

Eggs

C

Undivided cell

D

After gastrula stage

Question 248: Palette 248/391

Errorless MP PMT 1995 MCQ

The outer layer of the blastocyst which forms the ectoderm is called

A

Cnidoblast

B

Germinal vesicle

C

Trophoblast

D

Amnion

Question 249: Palette 249/391

Errorless Manipal 1995; MP PMT 1996; CPMT 2004 MCQ

The skeleton and muscles originate in the development from or During embryonic development endoskeleton and muscles develop from which germinal layer

A

Ectoderm

B

Endoderm

C

Mesoderm

D

Yolk plug

Question 250: Palette 250/391

Errorless CPMT 1995 MCQ

Spleen develops from

A

Ectoderm

B

Mesoderm

C

Endoderm

D

None of the above

Question 251: Palette 251/391

Errorless AFMC 1995 MCQ

When mouth develops from blastopore, the organism is called

A

Deutrostomia

B

Protostomia

C

Blastostomia

D

None of these

Question 252: Palette 252/391

Errorless MP PMT 1995 MCQ

The foetal membrane which is the source of first blood corpuscle to enter the circulation of the embryo is called

A

Amnion

B

Chorion

C

Trophoblast

D

Yolk sac

Question 253: Palette 253/391

Errorless NCERT; MP PMT 1995, 2009 MCQ

Urinary bladder of the embryo is or Which is the urinary bladder of child placed in the womb

A

Yolk sac

B

Allantois

C

Amnion

D

Chorion and allantois both

Question 254: Palette 254/391

Errorless AFMC 1995 MCQ

During the development of embryo which of the following occur first

A

Differentiation of tissue

B

Differentiation of cells

C

Differentiation of organs

D

Differentiation of organ system

Question 255: Palette 255/391

Errorless CPMT 1995 MCQ

Which of the following structure is found in blastula

A

Segmentation cavity

B

Notochord

C

Gill

D

Tail

Question 256: Palette 256/391

Errorless RPMT 1995 MCQ

Which of the following structure originates from ectoderm

A

Stomodaeum

B

Proctodaeum

C

Mesodaeum

D

Both

Question 257: Palette 257/391

Errorless AIIMS 1995 MCQ

Assertion : The development in cockroach is heterometabolous metamorphosis. Reason: Young ones resemble the adults in all characters.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 258: Palette 258/391

Errorless MP PMT 1994, 95 MCQ

Cowper's gland is present in

A

Cockroach

B

Rabbit

C

Earthworm

D

Frog

Question 259: Palette 259/391

Errorless MP PMT 1994; CBSE PMT 2008 MCQ

In humans, at the end of the first meiotic division, the male germ cells differentiate into be

A

Spermatids

B

Spermatozonia

C

Primary spermatocytes

D

Secondary spermatocytes

Question 260: Palette 260/391

Errorless MP PMT 1994 MCQ

The breakage of the membrane surrounding the acrosome in a mammalian sperm is

A

Activation

B

Cavitation

C

Agglutination

D

Capacitation

Question 261: Palette 261/391

Errorless MP PMT 1994 MCQ

The final event in the process of fertilization is

A

Fusion of gametes

B

Egg activation

C

Amphimixis

D

Organizational change in egg cytoplasm

Question 262: Palette 262/391

Errorless CBSE PMT 1994; AFMC 1999 MCQ

What is true about cleavage in the fertilised egg in humans [NCERT Pg. No. 36]

A

It is meroblastic

B

It starts while the egg is in fallopian tube

C

It is identical to the normal mitosis

D

It starts when the egg reaches in uterus

Question 263: Palette 263/391

Errorless CBSE PMT 1994; CPMT 2002 MCQ

Coelom derived from blastocoel is known as

A

Pseudocoelom

B

Enterocoelom

C

Haemocoel

D

Schizocoel

Question 264: Palette 264/391

Errorless KCET 1994; BHU 1995; CPMT 2000 MCQ

Eggs of reptiles and birds are Or The egg of frog is [MP PMT 1998, 2006; CPMT 1999; RPMT 2000; BVP 2001; Pb. PMT 2004]

A

Alecithal

B

Isolecithal

C

Telolecithal

D

Homolecithal

Question 265: Palette 265/391

Errorless MP PMT 1994 MCQ

Cleavage divisions differ from normal mitotic divisions in that

A

There is no nuclear division during cleavage

B

There is no division of the cytoplasm during cleavage

C

There is no period of growth in between the divisions (d). The division of the cutonlasm follows nuclear divisions

D

The division of the cytoplasm follows nuclear divisions

Question 266: Palette 266/391

Errorless MP PMT 1994 MCQ

The mammalian primitive streak gives rise to

A

Ectoderm

B

Mesoderm

C

Endoderm

D

Germ layers

Question 267: Palette 267/391

Errorless MP PMT 1994 MCQ

During the development of an embryo, migration and rearrangement of cells lead to a pattern formation known as

A

Epiboly

B

Emboly

C

Involution

D

Gastrulation

Question 268: Palette 268/391

Errorless CPMT 1994 MCQ

The layer of uterus which becomes much eroded due to placental villi is known as

A

Endothelium

B

Endometrium

C

Endoderm

D

Trophoblast

Question 269: Palette 269/391

Errorless MP PMT 1994 MCQ

Chorion is found

A

Inside the amnion

B

Outside the amnion

C

Inside the allantois

D

Inside the yolk sac

Question 270: Palette 270/391

Errorless MP PMT 1994 MCQ

The chemical substance found in the surface layer of cytoplasm of spermatozoa is

A

Fertilizin

B

Agglutinin

C

Antifertilizin

D

Hyaluronidase

Question 271: Palette 271/391

Errorless MP PMT 1994 MCQ

Fertilization restores

A

Haploidy from diploidy

B

Diploidy from polyploidy

C

Polyploidy from diploidy

D

None of these

Question 272: Palette 272/391

Errorless MP PMT 1994 MCQ

Holoblastic cleavage may occur in eggs which are

A

Oligolecithal only

B

Mesolecithal only

C

Macrolecithal only

D

Oligolecithal & mesolecithal

Question 273: Palette 273/391

Errorless MP PMT 1994 MCQ

The solid mass of cells formed at the end of cleavage of mammalian egg is Or The stage transferred into the uterus after induced fertilization of ova in the laboratory is [NEET (Karnataka) 2013]

A

Blastula

B

Morula

C

Blastocyst

D

Blastodisc

Question 274: Palette 274/391

Errorless MP PMT 1994; RPMT 1999 MCQ

The type of blastula formed in birds is

A

Teloblastula

B

Holoblastula

C

Coeloblastula

D

Discoblastula

Question 275: Palette 275/391

Errorless MP PMT 1994 MCQ

The literal meaning of "gastrulation" is

A

Formation of primary germ layers

B

Formation of a gut

C

Morphogenetic movement

D

Commencement of organogenesis

Question 276: Palette 276/391

Errorless DPMT 1993; MP PMT 2007 MCQ

Cryptorchidism is the condition in man when

A

There are two testis in each scrotum

B

Testis do not descent into the scrotum

C

Testis enlarge in the scrotum

D

Testis degenerate in the scrotum

Question 277: Palette 277/391

Errorless MP PMT 1993 MCQ

The capsule enclosing testis of mammal is called as

A

Tunica albuginea

B

Tunica membrana

C

Tunica vaginalis

D

Tunica vesculosa

Question 278: Palette 278/391

Errorless MP PMT 1993, 94, 96, 98; RPMT 2002 MCQ

Corpus luteum in mammals is present in

A

Heart and initiates atrial contraction

B

Brain and connects the two cerebral hemispheres

C

Ovaries and produces progesterone

D

Skin and acts as a pain receptor

Question 279: Palette 279/391

Errorless CBSE PMT 1993 MCQ

The immatured stage eggs are called as

A

Microlecithal

B

Oogenesis

C

Oocyte

D

Zygote

Question 280: Palette 280/391

Errorless AIIMS 1993; MP PMT 1993, 95; CPMT 1994; Kerala CET 2002; RPMT 2002; Bihar CECE 2006; Odisha JEE 2011, 12; WB JEE 2011, 16; J & K CET 2012 MCQ

Fertilization occurs in human, rabbit and other placental mammals in [NCERT Pg. No. 29, 35]

A

Ovary

B

Uterus

C

Fallopian tubes

D

Vagina

Question 281: Palette 281/391

Errorless MP PMT 1993; DPMT 1993 MCQ

Formation of segmentation cavity shows

A

Rearrangement of cells

B

Blastula stage

C

Epiboly

D

Emboly

Question 282: Palette 282/391

Errorless CMC Vellore 1993; BVP 2001; MP PMT 2002 MCQ

Cleidoic eggs are found in

A

Birds

B

Mammals

C

Annelids

D

Molluscs

Question 283: Palette 283/391

Errorless MP PMT 1993 MCQ

The cleavage is such method of divisions of fertilized egg in which the egg

A

Does not divide but only increase in size

B

Divides repeatedly but without growth

C

Divides repeatedly and grows

D

None of these

Question 284: Palette 284/391

Errorless DPMT 1993 MCQ

Which one of the following is derived from ectoderm

A

Enamel of teeth

B

Dentine

C

Skull

D

Axial skeleton

Question 285: Palette 285/391

Errorless CPMT 1993 MCQ

Archenteron is lined with

A

Ectoderm

B

Mesoderm

C

Endoderm

D

Mesoderm and endoderm

Question 286: Palette 286/391

Errorless CBSE PMT 1993 MCQ

The rolling of endodermal and mesodermal cells from the surface of embryo into its interior is called

A

Ingression

B

Invagination

C

Involution

D

Inversion

Question 287: Palette 287/391

Errorless DPMT 1993; MP PMT 1996; Bihar CECE 2006; KCET 2010 MCQ

Blastopore is found in

A

Gastrula

B

Blastula

C

Morula

D

Neurula

Question 288: Palette 288/391

Errorless CBSE PMT 1993 MCQ

Development of structure and shape of an organism is

A

Morphology

B

Multiplication

C

Morphogenesis

D

Budding

Question 289: Palette 289/391

Errorless DPMT 1993; MP PMT 1994, 96, 99; AFMC 2008 MCQ

The shock absorber fluid of the developing embryo is known as

A

Chorionic fluid

B

Amniotic fluid

C

Allantoic fluid

D

Coelomic fluid

Question 290: Palette 290/391

Errorless NCERT; MP PMT 1993 MCQ

Foetal membranes provide

A

Protection of embryo

B

Nutrition of embryo

C

Respiration of embryo

D

All the above

Question 291: Palette 291/391

Errorless CBSE PMT 1993 MCQ

The shortest gestation period is seen in

A

Man

B

Elephant

C

Cat

D

Mouse

Question 292: Palette 292/391

Errorless JIPMER 1993 MCQ

Which of these sets of cells divide slowly

A

Micromeres

B

Megameres

C

Blastomeres

D

Mesomeres

Question 293: Palette 293/391

Errorless NCERT; CPMT 1993; MP PMT 1993; RPMT 2001 MCQ

Clitoris in mammals is

A

Homologous to penis

B

Analogous to penis

C

Functional penis in female

D

Non-functional penis in male

Question 294: Palette 294/391

Errorless CBSE PMT 1993; MP PMT 2002 MCQ

The attachment of the mammalian blastocyst to the uterine wall is

A

Incest

B

Implantation

C

Intromission

D

Incorporation

Question 295: Palette 295/391

Errorless AIIMS 1993 MCQ

The fluid filled in the blastocoel cavity of blastula is

A

Acidic

B

Albuminous

C

Saline

D

Pure water

Question 296: Palette 296/391

Errorless AIIMS 1993 MCQ

During the fourth and sixth cleavage of the zygote

A

Mesomeres give rise to endoderm

B

Micromeres give rise to ectoderm

C

Mesomeres give rise to mesoderm

D

Macromeres give rise to ectoderm

Question 297: Palette 297/391

Errorless CBSE PMT 1992 MCQ

There are some special types of cells found in the seminiferous tubules known as sertoli cells. These are

A

Germinal cells

B

Reproductive cells

C

Somatic cells

D

Protective cells

Question 298: Palette 298/391

Errorless AIIMS 1992; CBSE PMT 1995; RPMT 1999, 2006; MP PMT 2003; Odisha JEE 2004; DPMT 2007; NEET (Karnatak) 2013 MCQ

The figure shows a section of human ovary. Select the option which gives the correct identification of A to F

A

A - Graafian follicle, B - Tertiary follicle with antrum, C - Ovum, D - Corpus luteum, E - Primary follicle, F - Corpus albicans

B

A - Graafian follicle, B - Tertiary follicle with antrum, C - Ovum, D - Corpus albicans, E - Primary follicle, F - Corpus luteum

C

A -Graafian follicle, B -Tertiary follicle with antrum, C - Ovum, D - Corpus spongiosum, E - Primary follicle, F - Corpus albicans

D

A - Secondary follicle, B -Tertiary follicle with antrum , C - Ovum, D - Corpus luteum, E - Primary follicle, F - Corpus albicans

Question 299: Palette 299/391

Errorless CBSE PMT 1992 MCQ

The branch of embryology which concerns with the study of abnormal embryonic development is termed as

A

Gerantology

B

Teratology

C

Embryology

D

None of the above

Question 300: Palette 300/391

Errorless CBSE PMT 1992 MCQ

Epiboly is the process of

A

Mass migration of cells from the animal hemisphere so that upper micromeres begin to migrate over the edge of the dorsal lip and roll inside and are tucked beneath the outer layer

B

Over growth when the micromeres divide rapidly and begin to spread downwards over the megameres except at the yolk plug

C

Rotation of gastrula within the vitelline membrane so that the animal pole becomes anterior

D

Formation of a small slit like invagination occuring on the grey crescent

Question 301: Palette 301/391

Errorless MP PMT 1992; KCET 2012 MCQ

Which one of the following list contains only the mesodermal structures

A

Muscles, blood, notochord, liver

B

Bones, blood, heart, liver

C

Muscles, blood, heart, liver

D

Bones, blood, heart, notochord

Question 302: Palette 302/391

Errorless DPMT 1992; MP PMT 2002, 12 MCQ

Archenteron is formed during

A

Early blastula

B

Morula stage

C

Early gastrula

D

Late gastrula

Question 303: Palette 303/391

Errorless AIIMS 1992 MCQ

The placental barrier between the maternal and foetal blood is minimum in

A

Goat

B

Pig

C

Cow

D

Human

Question 304: Palette 304/391

Errorless CBSE PMT 1991 MCQ

In man sperms move after ejaculation at a rate of nearly

A

2 to 4 mm/minute

B

2 to 4 feet/minute

C

2 to 4 inches/minute

D

2 to 4 cm/minute

Question 305: Palette 305/391

Errorless CBSE PMT 1991 MCQ

What is true about cells during cleavage

A

They move from animal pole to vegetal pole

B

They do not grow in size

C

They consume little O2

D

Their divisions resemble ordinary mitosis

Question 306: Palette 306/391

Errorless CBSE PMT 1990 MCQ

The mammalian follicle was first described by

A

Von Baer

B

De Graaf

C

Robert Brown

D

Spallanzil

Question 307: Palette 307/391

Errorless CBSE PMT 1990; KCET 1994 MCQ

Vascular system, gonads and excretory organs are developed from embryonic

A

Mesoderm

B

Ectoderm

C

Endoderm

D

None of the above

Question 308: Palette 308/391

Errorless CBSE PMT 1990; AFMC 1993 MCQ

The concept that organiser is essential for embryonic development was given by or For the Theory of organiser' Nobel prize was given to

A

J. Axelrod

B

C. Landsteiner

C

H. Spemann

D

I.P. Pavlov

Question 309: Palette 309/391

Errorless CBSE PMT 1990 MCQ

Which of the following is correct statement [CBSE PM1 1990]

A

In blastulation major presumptive and organ forming areas are segregated into definite points of the blastoderm

B

Blastulation establishes the three germinal layers

C

Blastulation of frog is known as discoblastula

D

Fluid filled space in blastula is known as archenteron

Question 310: Palette 310/391

Errorless CBSE PMT 1990; RPMT 1995; J & K CET 2002 MCQ

True coelom develops as a split in

A

Mesoderm

B

Endoderm

C

Ectoderm

D

Between ectoderm and endoderm

Question 311: Palette 311/391

Errorless MCQ

In human, the unpaired male reproductive structure is

A

Seminal vesicle

B

Prostate

C

Bulbourethral gland

D

Testes

E

Vas deferens

Question 312: Palette 312/391

Errorless MCQ

Which option is correct for the region labelled as a' and 'b' in the given diagram

A

a = Mitosis, b = Primary spermatocyte

B

a = Meiosis, b = Secondary spermatocyte

C

a = Mitosis, b = Secondary spermatocyte

D

a = Meiosis, b = Primary spermatocyte

Question 313: Palette 313/391

Errorless MCQ

The given diagram shows to ovum surrounded by few sperms. Identify all the alphabets correctly

A

A - Oolemma, B - Perivitelline space, C - Corona radiata

B

A - Zona pellucida, B - Perivitelline space, C - Corona radiata

C

A - Zona pellucida, B - Vitelline membrane, C - Corona radiata

D

A - Zona pellucida, B - Perivitelline space, C - Corona reticulata

Question 314: Palette 314/391

Errorless MCQ

The given figure refers to T.S. of testis showing sectional view of a few seminiferous tubules. Identify the marked alphabets

A

A - Sertoli cells, B - Spermatogonia, C - Interstitial cells, D - Sperms

B

A - Interstitial cells, B - Spermatogonia, C - Sertoli cells, D - Sperms

C

A - Sertoli cells, B - Secondary spermatocyte, C - Interstitial cells, D - Sperms

D

A - Sertoli cells, B - Spermatozoa, C - Interstitial cells, D - Sperms

Question 315: Palette 315/391

Errorless MCQ

Match each function given below with the related part or parts of the human male reproductive system shown in the diagram [NCERT Pg. No. 27]

(A) Produces sperm
(B) Conducts the sperm through the penis to the outside of the body
(C) Produces seminal fluid
(D) Connects the epididymis with the urethra
(E) Stores sperm

A

A - 7; B - 5; C - 1, 3, 4; D - 2; E - 6

B

A - 1, 2; B - 5; C - 3, 4; D - 7; E - 6

C

A - 7; B - 6; C - 1, 2, 3; D - 5; E - 4

D

A - 6; B - 5; C - 1, 2, 4; D - 3; E - 7

Question 316: Palette 316/391

Errorless MCQ

The following figure refers to L.S. of testis showing various parts. In which option all the six parts 1, 2, 3, 4, 5 and 6 are correctly identified [NCERT Pg. No. 27]

A

1- Tunica Vaginalis, 2 - Rete Testis, 3 - Caput Epididymis, 4 - Mediastinum Testis, 5 - Vas Deferens, 6 - Cauda Epididymis

B

1- Tunica Vaginalis, 2 - Rete Testis, 3 - Cauda Epididymis, 4 - Vas Deferens, 5 - Mediastinum Testis, 6 - Caput Epididymis

C

1- Tunica Vaginalis, 2 - Rete Testis, 3 - Cauda Epididymis, 4 - Mediastinun Testis, 5 - Vas Deferens, 6 - Caput Epididymis

D

1- Tunica Vaginalis, 2 - Rete Testis, 3 - Caput Epididymis, 4 - Vas Deferens, 5 - Mediastinum Testis, 6 - Cauda Epididymis

Question 317: Palette 317/391

Errorless MCQ

The abdominal passage which connects the abdominal cavity with the scrotal sac in mammals is known as [NCERT]

A

Spermatic canal

B

Neurenteric canal

C

Inguinal canal

D

Haversion canal

Question 318: Palette 318/391

Errorless MCQ

A primary spermatocyte is

A

Polyploid

B

Haploid

C

Diploid

D

Aneuploid

Question 319: Palette 319/391

Errorless MCQ

Identify the parts labelled (A to G) in the given figure of male reproductive system from the list I to X

(I) Fundus
(II) Uriniferous tubules
(III) Seminiferous tubules
(IV) Seminal vesicle
(V) Prostate
(VI) Ejaculatory duct
(VII) Rectum
(VIII) Anus
(IX) Bulbourethral gland
(X) Scrotum

A

A - IV, B - V, C - X, D - IX, E - VIII, F - VII, G - VI

B

A - X, B - IX, C - VIII, D - IV, E - III, F - II, G - I

C

A - IV, B - V, C - I, D - III, E - IX, F - X, G - II

D

A - V, B - III, C - I, D - II, E - IV, F - VI, G − VIII

Question 320: Palette 320/391

Errorless MCQ

The given figure belongs to human sperm. Identify I, II and III respectively

A

I - Acrosome, II - 23, III - Spirilum

B

I - Lysosome, II - 23, III - Mitochondria

C

I - Acrosome, II - 23, III - Mitochondria

D

I - Acrosome, II - 46, III – Mitochondria

Question 321: Palette 321/391

Errorless MCQ

The given figure refers to spermatogenesis and oogenesis in human. Select the right option in which A to H are correctly identified

A

A - Spermatogonia, B - Primary spermatocytes, C - Secondary spermatocytes, D - Spermatids, E - Primary oocyte, F - Secondary oocyte, G - Second polar body H - First polar body

B

A - Spermatogonia, B - Primary spermatocytes, C - Secondary spermatocytes, D - Spermatids, E - Primary oocyte, F - Secondary oocyte, G - First polar body, H - Second polar body

C

A - Spermatogonia, B - Primary spermatocytes, C - Secondary spermatocytes, D - Spermatids, E - Secondary oocyte, F - Primary oocyte, G - First polar body, H - Second polar body

D

A - Spermatogonia, B - Secondary spermatocytes, C - Primary spermatocytes, D - Spermatids, E - Primary oocyte, F - Secondary oocyte, G - First polar body, H - Second polar body

Question 322: Palette 322/391

Errorless MCQ

The given figure is a portion of a seminiferous tubule. Identify A, B, C, D, E and F respectively

A

A - Leydig cells, B - Spermatogonium, C - Primary spermatocyte, D - Secondary spermatocyte, E - Spermatozoa, F- Sertoli cells

B

A - Leydig cells, B - Primary spermatocyte, C Spermatogonium, D - Secondary spermatocyte, E - Spermatids, F- Sertoli cells

C

A - Sertoli cells, B - Spermatogonium, C - Primary spermatocyte, D - Secondary spermatocyte, E Spermatids, F- Leydig cells

D

A - Leydig cells, B - Spermatogonium, C - Primary spermatocyte, D - Secondary spermatocyte, E - Spermatids, F- Sertoli cells

Question 323: Palette 323/391

Errorless MCQ

What happens during fertilisation in humans after many sperms reach close to the ovum

A

Cells of corona radiata trap all the sperms except one

B

Only two sperms nearest the ovum penetrate zona pellucida

C

Secretions of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida

D

All sperms except the one nearest to the ovum lose their tails

Question 324: Palette 324/391

Errorless MCQ

Which stage of the menstrual cycle is characterized by the event labelled A in given diagram

A

Fertilization

B

Flow

C

Ovulation

D

Corpus luteum formation B

Question 325: Palette 325/391

Errorless MCQ

In female rabbit, the expanded proximal part of the oviduct is known as

A

Uterus

B

Vagina

C

Vestibule

D

Fimbricated funnel

Question 326: Palette 326/391

Errorless MCQ

The layer of cells immediately surrounding the ovum but outside the zona pellucida is called [NCERT Pg. No. 35] Or The membranous cover of the ovum at ovulation is

A

Corona radiata

B

Membrana granulosa

C

Theca interna

D

Germinal epithelium

Question 327: Palette 327/391

Errorless MCQ

The membrane investing the ovum just outside the membrana granulosa is

A

Zona pellucida

B

Theca interna

C

Vitelline membrane

D

Discus proligerous

Question 328: Palette 328/391

Errorless MCQ

Match the items given in Column I with those in Column II and select the correct option given below Column I Column II

Column-I	Column-II
(A) Proliferative Phase (B) Secretory Phase (C) Menstruation	(P) Breakdown of endometrial lining (Q) Follicular Phase (R) Luteal Phase

A

A - R, B - Q, C - P

B

A - Q, B - R, C - P

C

A - Q, B - R, C - Q

D

A - R, B - P, C - Q

Question 329: Palette 329/391

Errorless MCQ

Identify the parts as A, B, C, D in the given diagram

A

A − oviduct, B − uterus, C − outduct, D - ovary

B

A − cervix, B − uterus, C − ovary, D - tumor

C

A – uterus, B – uterine cavity, C – oviducal funnel, D - ovary

D

A – cervix, B – uterine cavity, C - fallopian tube, D - ovary

Question 330: Palette 330/391

Errorless MCQ

The following graph represents the concentrations of the four hormones present in the blood plasma of a women during her menstrual cycle. Identify the hormones

A

A - FSH; B - Progesterone; C - LH; D - Oestrogen

B

A - LH; B - Progesterone; C - FSH; D - Oestrogen

C

A - FSH; B - Oestrogen; C - LH; D - Progesterone

D

A - LH; B - Oestrogen; C - FSH; D - Progesterone

Question 331: Palette 331/391

Errorless MCQ

When did the structure labelled B in the following diagram start to form [NCERT Pg. No. 36]

A

At puberty

B

At the start of the menstrual cycle

C

Before birth

D

In infancy

Question 332: Palette 332/391

Errorless MCQ

The events of the menstrual cycle are represented below. Select the right option in which the level of FSH, LH and progesterone are mentioned correctly[NCERT Pg. No. 34]

A

13th–14th day: FSH - High; LH - High; Progesterone - Low; 21st–23rd day: FSH - Low; LH - Low; Progesterone - High

B

13th–14th day: FSH - High; LH - High; Progesterone - High; 21st–23rd day: FSH - Low; LH - Low; Progesterone - Low

C

13th–14th day: FSH - Low; LH - Low; Progesterone - Low; 21st–23rd day: FSH - High; LH - High; Progesterone - High

D

13th–14th day: FSH - Low; LH - Low; Progesterone - High; 21st–23rd day: FSH - High; LH - Low; Progesterone - Low

Question 333: Palette 333/391

Errorless MCQ

Label the given figure which illustrates fertilization followed by cleavage and the early stages of embryonic development

A

A - ovary, B - morula, C - blastocyst, D - cervix, E - vagina

B

A - ovary, B - blastocyst, C - morula, D - cervix, E - vagina

C

A - ovary, B - blastocyst, C - morula, D - vagina, E - cervix

D

A - ovary, B - blastocyst, C - gastrula, D - vagina, E - cervix

Question 334: Palette 334/391

Errorless MCQ

The following diagram refers the changes taking place during the human menstruation cycle In each of the boxes shown in the diagram fill with the name of the hormone or hormones controlling the stage in the human menstrual cycle

A

A FSH, B LH, C LH, D Progesterone, E Estrogen

B

A FSH, B LH, C FSH, D Estrogen, E Progesterone

C

A LH, B FSH, C LH, D Estrogen, E Progesterone

D

A FSH, B LH, C LH, D Estrogen, E Progesterone

Question 335: Palette 335/391

Errorless MCQ

The structure formed after release of ova from Graafian follicles and secretory in nature, is

A

Corpus callosum

B

Corpus luteum

C

Corpus albicans

D

Corpus stratum

Question 336: Palette 336/391

Errorless MCQ

Which one of the following statements is incorrect about menstruation

A

At menopause the female is, there is especially abrupt increase in gonadotropic hormones

B

The beginning of the cycle of menstruation is called menarche

C

During normal menstruation about 40 ml blood is lost

D

The menstrual fluid can easily clot

Question 337: Palette 337/391

Errorless MCQ

The figure given below is the diagrammatic sectional view of mammary gland. identify A to D respectively

A

A - Alveolus, B - Mammary duct, C - Lactiferous duct, D - Lactogenic spot

B

A - Alveolus, B - Lactiferous duct, C - Mammary duct D - Areola

C

A - Alveolus, B - Mammary duct, C - Lactiferous duct, D - Areola

D

A - Gland, B - Mammary duct, C - Lactiferous duct, D - Areola

Question 338: Palette 338/391

Errorless MCQ

The following figure represents to female reproductive system of human. Select the right option in which A to E are correctly identified [NCERT Pg. No. 29]

A

A - Uterus, B - Urinary bladder, C - Urethra, D - Cervix, E - Vagina

B

A - Urethra, B - Urinary bladder, C - Uterus, D - Cervix, E - Vagina

C

A - Uterus, B - Urinary bladder, C - Urethra, D - Vagina, E - Cervix

D

A - Urethra, B - Urinary bladder, C - Uterus, D - Cervix, E - Vagina

Question 339: Palette 339/391

Errorless MCQ

The given figure refers to female reproductive system of human. Identify the marked alphabets

A

A - Ampulla, B - Infundibulum, C - Isthmus, D - Fallopian tube, E - Ovary, F - Uterine fundus

B

A - Isthmus, B - Infundibulum, C - Ampulla, D - Fallopian tube, E - Ovary, F - Uterine fundus

C

A - Ampulla, B - Isthmus, C - Infundibulum, D - Fallopian tube, E - Ovary, F - Uterine fundus

D

A - Isthmus, B - Ampulla, C - Infundibulum, D - Fallopian tube, E - Ovary, F - Uterine fundus

Question 340: Palette 340/391

Errorless MCQ

Match each given function with the related part or parts of the human female reproductive system shown in the diagram [NCERT Pg. No. 29] (1) Where is the egg produced (2) Where does fertilization occur (3) Where would implantation of a fertilized egg take place (4) Where are estrogen and progesterone produced (5) What part receives the male penis during copulation

A

1 - E, 2 - C, 3 - B, 4 - D, 5 - A

B

1 - D, 2 - C, 3 - B, 4 - D, 5 - A

C

1 - D, 2 - C, 3 - B, 4 - A, 5 - E

D

1 - D, 2 - C, 3 - B, 4 - E, 5 - A

Question 341: Palette 341/391

Errorless MCQ

Identify the parts labelled (A to G) in the following diagram of the vulva, from the list I to VIII

(I) Anus
(II) Glans clitoris
(III) Labia majora
(IV) Labia minora
(V) Mons pubis
(VI) Urethra

A

A - V, B - VI, C - VII, D - IV, E - II, F - III, G - I

B

A - II, B - III, C - V, D - IV, E - VI, F - VII, G - I

C

A - V, B - III, C - II, D - IV, E - VI, F - VII, G - I

D

A - V, B - IV, C - III, D - II, E - VI, F - VII, G − I

Question 342: Palette 342/391

Errorless MCQ

The process of releasing the ripe female gamete (ovum) from the ovary is called

A

Parturition

B

Ovulation

C

Fertilization

D

Implantation

Question 343: Palette 343/391

Errorless MCQ

In which phase of cell division is oogonia arrested

A

Anaphase II

B

Prophase I

C

Interphase

D

Both prophase I and II

Question 344: Palette 344/391

Errorless MCQ

Spermatogonia formed after which cell division

A

Meiosis I

B

Meiosis II

C

Mitosis

D

Amitosis

Question 345: Palette 345/391

Errorless MCQ

What is true in the process of fertilization

A

Only one sperm reaches the egg and enters it

B

The entry of sperm activates the egg for completing meiosis

C

Two haploid nuclei fuse and immediately divide to produce two nuclei which are again haploid

D

Only the acrosome of the sperm enters the egg

Question 346: Palette 346/391

Errorless MCQ

In which of the following embryonic stages does the implantation take place

A

B

C

D

Question 347: Palette 347/391

Errorless MCQ

Proctodaeum in rabbit is

A

A part of large intestine lined by ectoderm

B

A part of large intestine lined by endoderm

C

A part of large intestine lined by mesoderm

D

Embryonic intestine

Question 348: Palette 348/391

Errorless MCQ

The following figure refers to the human foetus within the uterus. Identify A to D correctly

A

A - Uterine, B - Yolk sac, C - Umbilical cord, D - Cervix

B

A - Placenta, B - Amnion, C - Umbilical cord, D - Cervix

C

A - Placenta, B - Yolk sac, C - Umbilical cord, D - Vagina

D

A - Placenta, B - Yolk sac, C - Umbilical cord, D - Cervix

Question 349: Palette 349/391

Errorless MCQ

Which one of the following develops from the trophoblast

A

Placenta

B

Allantois

C

Epidermis of the skin

D

Yolk sac

Question 350: Palette 350/391

Errorless MCQ

In a human foetus the limbs and digits develop after

A

12 weeks

B

First trimester

C

5th month

D

8 weeks

Question 351: Palette 351/391

Errorless MCQ

The first movements of the foetus and appearance of hair on its head are usually observed during which month of pregnancy

A

Third month

B

Fourth month

C

Fifth month

D

Sixth month

Question 352: Palette 352/391

Errorless MCQ

Choose the incorrect statement from the following [NCERT]

A

In birds and mammals internal fertilisation takes place

B

Colostrum contains antibodies and nutrients

C

Polyspermy in mammals is prevented by the chemical changes in the egg surface

D

In the human female implantation occurs almost seven days after fertilisation

Question 353: Palette 353/391

Errorless MCQ

Identify the correct statement from the following

A

High levels of estrogen triggers the ovulatory surge

B

Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards

C

Sperms released from seminiferous tubules are highly motile

D

Progesterone level is high during the post ovulatory phase of menstrual cycle

Question 354: Palette 354/391

Errorless MCQ

Spot the odd one out from the following structures with reference to the male reproductive system

A

Rete testis

B

Epididymis

C

Vasa efferentia

D

Isthmus

Question 355: Palette 355/391

Errorless MCQ

Seminal plasma, the fluid part of semen, is contributed by
(i) Seminal vesicle
(ii) Prostate gland
(iii) Urethra
(iv) Bulbourethral gland Options

A

i and ii

B

i, ii and iv

C

ii, iii, and iv

D

i and iv

Question 356: Palette 356/391

Errorless MCQ

Spermiation is the process of the release of sperms from

A

Seminiferous tubules

B

Vas deferens

C

Epididymis

D

Prostate gland

Question 357: Palette 357/391

Errorless MCQ

Mature Graafian follicle is generally present in the ovary of a healthy human female around [NCERT]

A

5 – 8 day of menstrual cycle

B

11 –17 day of menstrual cycle

C

18 – 23 day of menstrual cycle

D

24 – 28 day of menstrual cycle

Question 358: Palette 358/391

Errorless MCQ

Which one of the following is not a male accessory gland

A

Seminal vesicle

B

Ampulla

C

Prostate

D

Bulbourethral gland

Question 359: Palette 359/391

Errorless MCQ

The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above

A

Spermatogonia have 46 chromosomes and always undergo meiotic cell division

B

Primary spermatocytes divide by mitotic cell division

C

Secondary spermatocytes have 23 chromosomes and undergo second meiotic division

D

Spermatozoa are transformed into spermatids

Question 360: Palette 360/391

Errorless MCQ

Match between the following representing parts of the sperm and their functions and choose the correct option Column I Column II

Column-I	Column-II
(A) Head (B) Middle piece (C) Acrosome (D) Tail	(P) Enzymes (Q) Sperm motility (R) Energy (S) Genetic material

A

A-Q, B-R, C-P, D-Q

B

A-S, B-R, C-P, D-Q

C

A-S, B-R, C-Q, D-P

D

A-Q, B-S, C-P, D-R

Question 361: Palette 361/391

Errorless MCQ

Which among the following has 23 chromosomes

A

Spermatogonia

B

Zygote

C

Secondary oocyte

D

Oogonia

Question 362: Palette 362/391

Errorless MCQ

Match the following and choose the correct options Column I With Column II

Column-I	Column-II
(A) Head (B) Middle piece (C) Acrosome (D) Tail	(P) Enzymes (Q) Sperm motility (R) Energy (S) Genetic material

A

A-Q, B-R, C-P, D-Q

B

A-S, B-R, C-P, D-Q

C

A-S, B-R, C-Q, D-P

D

A-Q, B-S, C-P, D-R

Question 363: Palette 363/391

Errorless MCQ

Which of the following hormones is not secreted by human placenta

A

hCG

B

Estrogens

C

Progesterone

D

LH

Question 364: Palette 364/391

Errorless MCQ

The vas deferens receives duct from the seminal vesicle and opens into urethra as

A

Epididymis

B

Ejaculatory duct

C

Efferent ductule

D

Ureter

Question 365: Palette 365/391

Errorless MCQ

Urethral meatus refers to the

A

Urinogenital duct

B

Opening of vas deferens into urethra

C

External opening of the urinogenital duct

D

Muscles surrounding the urinogenital duct

Question 366: Palette 366/391

Errorless MCQ

Morula is a development stage

A

Between zygote and blastocyst

B

Between the blastocyst and gastrula

C

After the implantation

D

Between implantation and parturition

Question 367: Palette 367/391

Errorless MCQ

Identify the odd one from the following

A

Labia minora

B

Fimbriae

C

Infundibulum

D

Isthmus

Question 368: Palette 368/391

Errorless MCQ

The figure given below shows the self - regulating effect of testosterone. Which option in the following table correctly identifies the terms missing from circles A and B [NCERT]

A

Circle A – Increased secretion of ICSH, Circle B – Decreased secretion of ICSH

B

Circle A – Decreased secretion of FSH, Circle B – Increased secretion of FSH

C

Circle A – Increased secretion of FSH, Circle B – Decreased secretion of FSH

D

Circle A – Decreased secretion of ICSH, Circle B – Increased secretion of ICSH

Question 369: Palette 369/391

Errorless MCQ

Meiotic division of the secondary oocyte is completed

A

At the time of fusion of a sperm with an ovum

B

Prior to ovulation

C

At the time of copulation

D

After zygote formation

Question 370: Palette 370/391

Errorless MCQ

Which of the following statements are correct regarding female reproductive cycle
(A) In non-primate mammals cyclical changes during reproduction are called oestrus cycle.
(B) First menstrual cycle begins at puberty and is called menopause.
(C) Lack of menstruation may be indicative of pregnancy.
(D) Cyclic menstruation extends between menarche and

A

A and B only

B

A, B and C only

C

A, C and D only

D

A and D only

Question 371: Palette 371/391

Errorless MCQ

The size of human egg is

A

1.5 mm

B

0.15 mm

C

0.05 mm

D

0.3 mm

Question 372: Palette 372/391

Errorless MCQ

Termination of gastrulation is marked by

A

Obliteration of archenteron

B

Closure of neural tube

C

Obliteration of blastocoel

D

Closure of blastopore

Question 373: Palette 373/391

Errorless MCQ

The formation of the notochord takes place by

A

Primary ectoderm

B

Primary mesoderm

C

Primary endoderm

D

None of the above

Question 374: Palette 374/391

Errorless MCQ

What is the height and weight of twelve weeks old human embryo?

A

7.5 cm, 650 gram

B

7.5 cm, 14 gram

C

42 cm, 1800 gram

D

32 cm, 650 gram

Question 375: Palette 375/391

Errorless MCQ

Just after fertilization the first change is

A

Formation of grey crescent

B

Activation of egg

C

Formation of receptacle cone

D

Cortical reaction

E

No change takes place

Question 376: Palette 376/391

Errorless MCQ

The eggs of insects are

A

Mesolecithal and centrolecithal

B

Macrolecithal and centrolecithal

C

Mesolecithal and telolecithal

D

Macrolecithal and telolecithal

Question 377: Palette 377/391

Errorless MCQ

Type of cleavage in fertilized egg depends on

A

Amount of yolk

B

Number of cells

C

Number of mitochondria in the sperm

D

Number of testes

Question 378: Palette 378/391

Errorless MCQ

Which type of hormone controls the menstrual cycle in human beings?

A

LH

B

FSH

C

Progesterone

D

FSH, LH, Estrogen

Question 379: Palette 379/391

Errorless MCQ

Which of the following is a correct sequence in human embryo development?

A

Cleavage, gastrulation, blastulation

B

Blastulation, cleavage, gastrulation

C

Cleavage, blastulation, gastrulation

D

Gastrulation, blastulation, cleavage

Question 380: Palette 380/391

Errorless MCQ

The first milk coming out from mother's mammary glands just after childbirth is called

A

Testosterone

B

Colostrum

C

Estrogen

D

Progesterone

Question 381: Palette 381/391

Errorless MCQ

The group of anamniota includes

A

ACTH

B

Progesterone

C

GH

D

Gastrin

Question 382: Palette 382/391

Errorless MCQ

Assertion : Holoblastic cleavage with almost equal sized blastomeres is a characteristic of placental animals. Reason: Eggs of most mammals, including humans, are of centrolecithal type.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 383: Palette 383/391

Errorless MCQ

Assertion : Implantation is the process of attachment of blastocyst on uterine endometrium. Reason: Implantation is controlled by trophoblast and occurs by decidual cell reaction.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 384: Palette 384/391

Errorless MCQ

Assertion : Spermiation is the transformation of spermatid into sperm. Reason: During spermiation, sperms get nutrition from sertoli cells. [NCERT Pg. No. 31]

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 385: Palette 385/391

Errorless MCQ

Assertion : Primary spermatocytes of testes are haploid. Reason: Primary spermatocytes are formed by meiosis-I in the spermatogonia.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 386: Palette 386/391

Errorless MCQ

Assertion : Vagina acts as copulation canal and fertilization canal. Reason: Both insemination and fusion of gametes occur in vagina of female.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 387: Palette 387/391

Errorless MCQ

Assertion : Generally, a woman do not conceive during lactation period. Reason: The hormone prolactin initiates and maintain lactation in a woman.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 388: Palette 388/391

Errorless MCQ

Assertion : Fallopian funnel of oviduct is with fingerlike fimbriae. Reason: Graafian follicle of ovary is with secondary oocyte hanging in cavity called antrum.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 389: Palette 389/391

Errorless MCQ

Assertion : Endometrium is necessary for implantation of blastocyst. Reason: In the absence of fertilization, the corpus luteumdegeneratesthatcauses disintegration of endometrium.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 390: Palette 390/391

Errorless MCQ

Assertion : FSH acts upon ovarian follicles in female and Leydig cells in male. Reason : Growing ovarian follicles secrete estrogen in female while interstitial cells secrete androgen in male human being.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.

Question 391: Palette 391/391

Errorless MCQ

Assertion: Breast-feeding during initial period of infant growth is recommended by doctors for bringing a healthy baby Reason: Colostrum contains several antibodies absolutely essential to develop resistance for the new born baby.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If the assertion and reason both are false.

E

If assertion is false but reason is true.