Question 1: Palette 1/112

NEET 2026 MCQ

Spermatogonia undergo a series of cell divisions statements to produce sperms. Select the correct from the following :

A. Spermatogonia always undergo meiotic cell division.

B. Primary spermatocytes divide mitotically to produce secondary spermatocytes.

C. Secondary spermatocytes, through their second meiotic division, produce haploid spermatids.

D. Spermatids produce spermatozoa through mitosis.

E. Spermatids transform into spermatozoa by spermiogenesis.

Choose the correct answer from the options given below:

A

A and E only

B

C and E only

C

A, C and E only

D

B, C and D only

Question 2: Palette 2/112

NEET 2026 MCQ

$ \text { Match List I with List II related to embryonic development at various months of pregnancy: } $

$ \text { List I  } $		$ \text { List II } $
A.	The foetus movement starts and hair appears on the head	I.	24 weeks of pregnancy
B.	The foetus develops limbs and digits	II.	20 weeks of pregnancy
C.	The foetus develops external genital organs	III.	8 weeks of pregnancy
D.	The foetus body is covered with fine hair; eyelids separate and eyelashes are formed	IV.	12 weeks of pregnancy

Choose the correct answer from the options given below:

A

A-IV, B-II, C-III, D-I

B

A-II, B-III, C-IV, D-I

C

A-III, B-II, C-IV, D-I

D

A-II, B-IV, C-III, D-I

Question 3: Palette 3/112

NEET 2026 MCQ

Arrange the following cell layers/structures around the female gamete, from outer to inner side :

A. Zona pellucida

B. Perivitelline space

C. Corona radiata

D. Plasma membrane of ovum

Choose the correct answer from the options given below :

A

$D, B, A, C$

B

$\mathrm{C}, \mathrm{A}, \mathrm{D}, \mathrm{B}$

C

$\mathrm{C}, \mathrm{A}, \mathrm{B}, \mathrm{D}$

D

$\mathrm{A}, \mathrm{C}, \mathrm{B}, \mathrm{D}$

Question 4: Palette 4/112

NEET 2026 MCQ

The covering of ovum at ovulation is $\_\_\_\_$ .

A

chorion

B

endometrium

C

zona radiata

D

zona pellucida

Question 5: Palette 5/112

NEET 2026 MCQ

Which of the following struture is not a part of the male reproductive system?

A

Infundibulum

B

Rete testis

C

Epididymis

D

Vasa efferentia

Question 6: Palette 6/112

NEET 2026 MCQ

Given below are two statements:

Statement I : Ovulation is caused by LH surge leading to rupture of Graafian follicles.

Statement II: Graafian follicle remaining after ovulation transform into corpus luteum and secretes large amount of estrogen.

In the light of the above statements, choose the most appropriate answer from the options given below:

A

Statement I is incorrect but Statement II is correct

B

Both Statement I and Statement II are correct

C

Both Statement I and Statement II are incorrect

D

Statement I is correct but Statement II is incorrect

Question 7: Palette 7/112

NEET 2026 MCQ

Sperm motility is due to $\_\_\_\_$ .

A

muscular movement

B

flagellar movement

C

ciliary movement

D

amoeboid movement

Question 8: Palette 8/112

NEET 2026 MCQ

Which of the following hormone is not secreted by human placenta?

A

LH

B

hCG

C

Estrogen

D

Progesterone

Question 9: Palette 9/112

NEET 2025 MCQ

The first menstruation is called :

A

Diapause

B

Ovulation

C

Menopause

D

Menarche

Question 10: Palette 10/112

NEET 2025 MCQ

Find the correct statement :

(A) In human pregnancy, the major organ systems are formed at the end of 12 weeks.

(B) In human pregnancy the major organ systems are formed at the end of 8 weeks.

(C) In human pregnancy heart is formed after one month of gestation.

(D) In human pregnancy, limbs and digits develop by the end of second month.

(E) In human pregnancy the appearance of hair is usually observed in the fifth month.

Choose the correct answer from the options given below :

A

B, C, D and E only

B

A, C, D and E only

C

A and E only

D

B and C only

Question 11: Palette 11/112

NEET 2025 MCQ

Match List-I with List-II.

	List - I		List - II
A	Head	I	Enzymes
B	Middle piece	II	Sperm motility
C	Acrosome	III	Energy
D	Tail	IV	Genetic material

Choose the correct answer from the options given below :

A

A-III, B-IV, C-II, D-I

B

A-III, B-II, C-I, D-IV

C

A-IV, B-III, C-I, D-II

D

A-IV, B-III, C-II, D-I

Question 12: Palette 12/112

NEET 2025 MCQ

Consider the following :

A. The reductive division for the human female gametogenesis starts earlier than that of the male gametogenesis.

B. The gap between the first meiotic division and the second meiotic division is much shorter for males compared to females.

C. The first polar body is associated with the formation of the primary oocyte.

D. Luteinizing Hormone (LH) surge leads to disintegration of the endometrium and onset of menstrual bleeding.

Choose the correct answer from the options given below:

A

B and D are true

B

B and C are true

C

A and B are true

D

A and C are true

Question 13: Palette 13/112

NEET 2025 MCQ

Twins are born to a family that lives next door to you. The twins are a boy and a girl. Which of the following must be true?

A

They were conceived through in vitro fertilization.

B

They have $75 \%$ identical genetic content.

C

They are monozygotic twins.

D

They are fraternal twins.

Question 14: Palette 14/112

NEET 2024 MCQ

Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: During menstrual cycle, the ovulation takes place approximately on 14th day.

Reason R: Rapid secretion of LH in the middle of menstrual cycle induces rupture of Graafian follicle and thereby the release of ovum.

In the light of the above statements, choose the most appropriate answer from the options given below.

A

A is correct but R is not correct.

B

A is not correct but R is correct.

C

Both A and R are correct and R is the correct explanation of A.

D

Both A and R are correct but R is NOT the correct explanation of A.

Question 15: Palette 15/112

NEET 2024 MCQ

Arrange the following parts in human Mammary gland, traversing the route of milk ejection.

A. Mammary duct

B. Lactiferous duct

C. Mammary alveolus

D. Ampulla

E. Mammary tubule

Choose the correct answer from the options given below:

A

$\mathrm{D} \rightarrow \mathrm{C} \rightarrow \mathrm{E} \rightarrow \mathrm{A} \rightarrow \mathrm{B}$

B

$\mathrm{C} \rightarrow \mathrm{E} \rightarrow \mathrm{B} \rightarrow \mathrm{A} \rightarrow \mathrm{D}$

C

$\mathrm{C} \rightarrow \mathrm{E} \rightarrow \mathrm{A} \rightarrow \mathrm{D} \rightarrow \mathrm{B}$

D

$\mathrm{A} \rightarrow \mathrm{C} \rightarrow \mathrm{E} \rightarrow \mathrm{D} \rightarrow \mathrm{B}$

Question 16: Palette 16/112

NEET 2024 MCQ

Match List-I with List-II relating to human female external genitalia.

	List - I		List - II
(A)	Mons pubis	(I)	A fleshy fold of tissue surrounding the vaginal opening
(B)	Clitoris	(II)	Fatty cushion of cells covered by skin and hair
(C)	Hymen	(III)	Tiny finger-like structure above labia minora
(D)	Labina majora	(IV)	A thin membrane-like structure covering vaginal opening

Choose the correct answer from the option given below :

A

A-II, B-III, C-IV, D-I

B

A-IV, B-III, C-II, D-I

C

A-I, B-IV, C-III, D-II

D

A-II, B-III, C-I, D-IV

Question 17: Palette 17/112

NEET 2024 MCQ

Match List-I with List-II:

	List - I		List - II
(A)	Parturition	(I)	Several antibodies for new-born babies
(B)	Placenta	(II)	Collection of ovum after ovulation
(C)	Colostrum	(III)	Foetal ejection reflex
(D)	Fimbriae	(IV)	Secretion of the hormone hCG

Choose the correct answer from the option given below:

A

A-III, B-IV, C-I, D-II

B

A-I, B-IV, C-II, D-III

C

A-II, B-III, C-IV, D-I

D

A-III, B-IV, C-II, D-I

Question 18: Palette 18/112

NEET 2024 MCQ

Which of the following is not a component of Fallopian tube?

A

Uterine fundus

B

Isthmus

C

Infundibulum

D

Ampulla

Question 19: Palette 19/112

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 above statements, choose the correct answer from the options given below :

A

Both Statement I and Statement II are true

B

Both Statement I and Statement II are false

C

Statement I is true but Statement II is false

D

Statement I is false but Statement II is true

Question 20: Palette 20/112

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 21: Palette 21/112

NEET 2023 MCQ

Given below are two statements regarding oogenesis:

Statement I :- The primary follicles get surrounded by more layers of granulosa cells, a theca and shows fluid filled cavity antrum. Now it is called secondary follicle.

Statement II :- Graffian follicle ruptures to release the secondary oocyte from the ovary by the process called ovulation.

In the light of the above statements, choose the correct answer from the options given below:

A

Statement I is correct but Statement II is false.

B

Statement I is incorrect but Statement II is true

C

Both Statement I and Statement II are true

D

Both Statement I and Statement II are false.

Question 22: Palette 22/112

NEET 2023 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 menopause.

Choose the most appropriate answer from the options given below:

A

A and B only

B

A, B and C only

C

A, C and D only

D

A and D only

Question 23: Palette 23/112

NEET 2023 MCQ

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A: Endometrium is necessary for implantation of blastocyst.

Reason R: In the absence of fertilization, the corpus luteum degenerates that causes disintegration of endometrium.

In the light of the above statements, choose the correct answer from the options given below:

A

Both A and R are true but R is NOT the correct explanation of A.

B

A is true but R is false.

C

A is false but R is true.

D

Both A and R are true and R is the correct explanation of A.

Question 24: Palette 24/112

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

Both Statement I and Statement II are false.

B

Statement I is correct but Statement II is false.

C

Statement I is incorrect but Statement II is true.

D

Both Statement I and Statement II are true.

Question 25: Palette 25/112

NEET 2022 MCQ

How many secondary spermatocytes are required to form 400 million spermatozoa?

A

400 million

B

50 million

C

100 million

D

200 million

Question 26: Palette 26/112

NEET 2022 MCQ

Arrange the components of mammary gland. (from proximal to distal).

(a) Mammary duct

(b) Lactiferous duct

(c) Alveoli

(d) Mammary ampulla

(e) Mammary tubules

Choose the most appropriate answer from the options given below :

A

(e) $\to$ (c) $\to$ (d) $\to$ (b) $\to$ (a)

B

(c) $\to$ (a) $\to$ (d) $\to$ (e) $\to$ (b)

C

(b) $\to$ (c) $\to$ (e) $\to$ (d) $\to$ (a)

D

(c) $\to$ (e) $\to$ (a) $\to$ (d) $\to$ (b)

Question 27: Palette 27/112

NEET 2022 MCQ

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): During pregnancy the level of thyroxine is increased in the maternal blood.

Reason (R): Pregnancy is characterised by metabolic changes in the mother.

In the light of the above statements, choose the most appropriate answer from the options given below:

A

(A) is not correct but (R) is correct

B

Both (A) and (R) are correct and (R) is the correct explanation of (A)

C

Both (A) and (R) are correct but (R) is not the correct explanation of (A)

D

(A) is correct but (R) is not correct

Question 28: Palette 28/112

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

(c) and (d) only

B

(b) and (c) only

C

(b), (d) and (e) only

D

(b), (c) and (e) only

Question 29: Palette 29/112

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

Both Statement I and Statement II are correct

B

Both Statement I and Statement II are incorrect

C

Statement I is correct but Statement II is incorrect

D

Statement I is incorrect but Statement II is correct

Question 30: Palette 30/112

NEET 2022 MCQ

At which stage of life the oogenesis process is initiated?

A

Puberty

B

Embryonic development stage

C

Birth

D

Adult

Question 31: Palette 31/112

NEET 2021 MCQ

Receptors for sperm binding in mammals are present on :

A

Zona pellucida

B

Corona radiata

C

Vitelline membrane

D

Perivitelline space

Question 32: Palette 32/112

NEET 2021 MCQ

Which of these is not an important component of initiation of parturition in humans?

A

Release of Prolactin

B

Increase in estrogen and progesterone ratio

C

Synthesis of prostaglandins

D

Release of Oxytocin

Question 33: Palette 33/112

NEET 2021 MCQ

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

A

Uterus

B

Graafian follicle

C

Corpus luteum

D

Foetus

Question 34: Palette 34/112

NEET 2020 MCQ

Meiotic division of the secondary oocyte is completed

A

At the time of fusion of a sperm with an ovum

B

At the time of copulation

C

Prior to ovulation

D

After zygote formation

Question 35: Palette 35/112

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 Progesterone

C

Low concentration of LH

D

High concentration of Estrogen

Question 36: Palette 36/112

NEET 2020 MCQ

Match the following columns and select the correct option.

Column-I	Column-II
(A) Placenta	(i) Androgens
(B) Zona pellucida	(ii) Human Chorionic Gonadotropin (hCG)
(C) Bulbo-urethral	(iii) Layer of the ovum
(D) Leydig cells	(iv) Lubrication of the Penis

A

(A) $ \to $ (ii), (B) $ \to $ (iii), (C) $ \to $ (iv), (D) $ \to $ (i)

B

(A) $ \to $ (i), (B) $ \to $ (iv), (C) $ \to $ (ii), (D) $ \to $ (iii)

C

(A) $ \to $ (iv), (B) $ \to $ (iii), (C) $ \to $ (i), (D) $ \to $ (ii)

D

(A) $ \to $ (iii), (B) $ \to $ (ii), (C) $ \to $ (iv), (D) $ \to $ (i)

Question 37: Palette 37/112

NEET 2019 MCQ

Extrusion of second polar body from egg nucleus occurs :

A

Before entry of sperm into ovum

B

Simultaneously with first cleavage

C

After entry of sperm but before fertilization

D

After fertilization

Question 38: Palette 38/112

NEET 2019 MCQ

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

A

Seminiferous tubules $ \to $ Vasa efferentia $ \to $ Epididymis $ \to $ Inguinal canal $ \to $ Urethra

B

Testis $ \to $ Epididymis $ \to $ Vasa efferentia $ \to $ Vas deferens $ \to $ Ejaculatory duct $ \to $ Inguinal canal $ \to $ Urethra $ \to $ Urethral meatus

C

Testis $ \to $ Epididymis $ \to $ Vasa efferentia $ \to $ Rate testis $ \to $ Inguinal canal $ \to $ Urethra

D

Seminiferous tubules $ \to $ Rete testis $ \to $ Vasa efferentia $ \to $ Epididymis $ \to $ Vas deferens $ \to $ Ejaculatory duct $ \to $ Urethra $ \to $ Urethral meatus

Question 39: Palette 39/112

NEET 2018 MCQ

Hormones secreted by the placenta to maintain pregnancy are

A

hCG, hPL, progestogens, prolactin

B

hCG, hPL, estrogens, relaxin, oxytocin

C

hCG, hPL, progestogens, estrogens

D

hCG, progestogens, estrogens, glucocorticoids

Question 40: Palette 40/112

NEET 2018 MCQ

The difference between spermiogenesis and spermiation is

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 41: Palette 41/112

NEET 2018 MCQ

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

Column - I	Column - II
A. Proliferative phase	(i) Breakdown of endometrial lining
B. Secretory Phase	(ii) Follicular Phase
C. Menstruation	(iii) Luteal Phase

A

A	B	C
(i)	(ii)	(iii)

B

A	B	C
(i)	(iii)	(ii)

C

A	B	C
(ii)	(iii)	(i)

D

A	B	C
(iii)	(i)	(ii)

Question 42: Palette 42/112

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 43: Palette 43/112

NEET 2017 MCQ

Capacitation occurs in

A

epididymis

B

vas deferens

C

female reproductive tract

D

rete testis.

Question 44: Palette 44/112

NEET 2016 MCQ

Which of the following depicts the correct pathway of transport of sperms?

A

Rete testis  $ \to $  Efferent ductules  $ \to $  Epididymis  $ \to $  Vas deferens

B

Rete testis  $ \to $  Epididymis  $ \to $  Efferent ductules  $ \to $  Vas deferens

C

Rete testis  $ \to $  Vas deferens  $ \to $  Efferent ductules  $ \to $  Epididymis

D

Efferent ductules  $ \to $  Rete testis  $ \to $  Vas deferens  $ \to $  Epididymis

Question 45: Palette 45/112

NEET 2016 MCQ

Several hormones like hCG, hPL, estrogen, progesterone are produced by

A

ovary

B

placenta

C

Fallopian tube

D

pituitary.

Question 46: Palette 46/112

NEET 2016 MCQ

Match column I with column II and select the correct option using the codes given below.

Column I		Column II
(A)	Mons pubis	(i)	Embryo formation
(B)	Antrum	(ii)	Sperm
(C)	Trophectoderm	(iii)	Female external genitalia
(D)	Nebenkern	(iv)	Graafian follicle

A

(A)-(iii),  (B)-(iv),  (C)-(ii),  (D)-(i)

B

(A)-(iii),  (B)-(iv),  (C)-(i),  (D)-(ii)

C

(A)-(iii),  (B)-(i),  (C)-(iv),  (D)-(ii)

D

(A)-(i),  (B)-(iv),  (C)-(iii),  (D)-(ii)

Question 47: Palette 47/112

NEET 2016 MCQ

Fertilisation in humans is practically feasible only if

A

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

B

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

C

the sperms are transported into vagina just after the release of ovum in Fallopian tube

D

the ovum and sperms are transported simultaneously to ampullary$-$isthmic junction of the Fallopian tube.

Question 48: Palette 48/112

NEET 2016 MCQ

Select the incorrect statement.

A

LH and FSH decreases gradually during the follicular phase.

B

LH triggers secretion of androgen from the Leydig cells.

C

FSH stimulates the sertolicells which help in spermiogenesis.

D

LH triggers ovulation in ovary.

Question 49: Palette 49/112

NEET 2016 MCQ

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

A

progesterone only

B

progesterone and inhibin

C

estrogen and progesterone

D

estrogen and inhibin.

Question 50: Palette 50/112

NEET 2016 MCQ

Identify the correct statement on 'inhibin'.

A

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

B

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

C

Inhibits the secretion of LH, FSH and prolaction

D

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

Question 51: Palette 51/112

NEET 2015 MCQ

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

A

Release of secondary oocyte

B

LH surge

C

Decrease in estradiol

D

Full developmentof Graafian follicle

Question 52: Palette 52/112

NEET 2015 MCQ

In human females, meiosis-II is not completed until

A

uterine implantation

B

birth

C

puberty

D

fertilisation

Question 53: Palette 53/112

NEET 2015 MCQ

Ectopic pregnancies are referred to as

A

implantation of defective embryo in the uterus

B

pregnancies terminated due to hormonal imbalance

C

pregnancies with genetic abnormality

D

implantation of embryo at site other than uterus.

Question 54: Palette 54/112

NEET 2015 MCQ

Which of the following layers in an antral follicle is acellular?

A

Stroma

B

Zona pellucida

C

Granulosa

D

Theca interna

Question 55: Palette 55/112

NEET 2015 MCQ

Which of these is not an important component of initiation of parturition in humans?

A

Release of oxytocin

B

Release of prolactin

C

Increase in estrogen and progesterone ratio

D

Synthesis of prostaglandins

Question 56: Palette 56/112

NEET 2015 MCQ

Capacitation refers to changes in the

A

ovum after fertilisation

B

sperm after fertilisation

C

sperm before fertilisation

D

ovum before fertilisation

Question 57: Palette 57/112

NEET 2015 MCQ

Which of the following cells during gametogenesis is normally diploid?

A

Spermatogonia

B

Secondary polar body

C

Primary polar body

D

Spermatid

Question 58: Palette 58/112

NEET 2015 MCQ

Hysterectomy is surgical removal of

A

vas deferens

B

mammary glands

C

uterus

D

prostate gland

Question 59: Palette 59/112

NEET 2014 MCQ

The main function of mammalian corpus luteum is to produce

A

estrogen only

B

progesterone

C

human chorionic gonadotropin

D

relaxin only

Question 60: Palette 60/112

NEET 2014 MCQ

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

A

urethra

B

ureter

C

vas deferens

D

vasa efferentia

Question 61: Palette 61/112

NEET 2014 MCQ

Select the correct option describing gonadotropin activity in a normal pregnant female.

A

Hign level of FSH and SH stimulates the thickening of endometrium.

B

Hign level of FSH and SH facilitates implantation of the embryo.

C

High level of hCG stimulates the synthesis of estrogen and progesterone.

D

High level of hCG stimulates the thickening of endometrium.

Question 62: Palette 62/112

NEET 2013 MCQ

The figure shows a section of human ovary. Select the option which gives the correct identification of either A or B with function/ characteristic.

A

A- Tertiary follicle - Forms Graafian follicle

B

B- Corpus luteum - Secretes progesterone

C

A- Primary oocyte - It is in the prophase I of the meiotic division

D

B- Corpus luteum - Secretes estrogen

Question 63: Palette 63/112

NEET 2013 MCQ

In our society women are blamed for producing female children. Choose the correct answer for the sex-determination in humans.

A

Due to some defect like aspermia in man

B

Due to the genetic make up of the perticular sperm which fertilizes the egg

C

Due to the genetic make up of the egg

D

Due to some defect in the women

Question 64: Palette 64/112

NEET 2013 MCQ

The foetal ejection reflex in humans triggers the release of

A

oxytocin from foetal pituitary

B

human chorionic gonadotropin (hCG) from placenta

C

oxytocin from meternal pituitary

D

human placental lactogen (hPL) from placenta

Question 65: Palette 65/112

NEET 2013 MCQ

Which of the following is not the function of placenta?

A

Facilitates supply of oxygen and nutrients to embryo

B

Secretes estrogen

C

Facilitates removal of carbon dioxide and waste material from embryo

D

Secretes oxytocin during parturition

Question 66: Palette 66/112

NEET 2013 MCQ

Menstrual flow occurs due to lack of :

A

Progesterone

B

FSH

C

Oxytocin

D

Vasopressin

Question 67: Palette 67/112

NEET 2013 MCQ

What is the correct sequence of sperm formation?

A

Spermatogonia, spermatozoa, spermatocytes, spermatids

B

Spermatogonia, spermatocytes, spermatids, spermatozoa

C

Spermatids, spermatocytes, spermatogonia, spermatozoa

D

Spermatogonia, spermatocytes, spermatozoa, spermatids

Question 68: Palette 68/112

NEET 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.

A

Developmental stage $ \to $ 8-celled morula, Site of occurrence $ \to $ Starting point of Fallopian tube

B

Developmental stage $ \to $ Blastula, Site of occurrence $ \to $ End part of Fallopian tube

C

Developmental stage $ \to $ 8-celled morula, Site of occurrence $ \to $ Starting point of Fallopian tube

D

Developmental stage $ \to $ Blastocyst, Site of occurrence $ \to $ Uterine wall

Question 69: Palette 69/112

NEET 2012 MCQ

The secretory phase in the human menstrual cycle is also called :

A

Follicular phase lasting for about 6 days

B

Luteal phase and lasts for about 13 days

C

Follicular phase and lasts for about 13 days

D

Luteal phase and lasts for about 6 days

Question 70: Palette 70/112

NEET 2012 MCQ

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

A

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

B

High level of circulating HCG to stimulate estrogen and progesterone synthesis

C

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

D

High level of circulating HCG to stimulate endometrial thickening

Question 71: Palette 71/112

NEET 2012 MCQ

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

A

Viability of sperm is determined by its motility

B

Sperms must be concentrated in a thick suspension

C

Sperm is viable for only up to 24 hours

D

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

Question 72: Palette 72/112

NEET 2012 MCQ

The leydig's cells as found in the human body are the secretory source of

A

Glucagon

B

Androgens

C

Progesterone

D

Intestinal mucus

Question 73: Palette 73/112

NEET 2012 MCQ

Signals for parturition originate from :

A

Placenta only

B

Fully developed foetus only

C

Both placenta as well as fully developed foetus

D

Oxytocin released from maternal pituitary

Question 74: Palette 74/112

NEET 2011 MCQ

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

A

Only two sperms nearest the ovum penetrate zona pellucida

B

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

C

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

D

Cells of corona radiate trap all the sperms except one.

Question 75: Palette 75/112

NEET 2011 MCQ

About which day in a normal human menstrual cycle does rapid secretion of LH (popularly called LH-surge) normally occurs?

A

11^th day

B

14^th day

C

20^th day

D

5^th day

Question 76: Palette 76/112

NEET 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) Fimbriage

C

(III) Infundibulum, (IV) Fimbriae, (V) Cervix

D

(IV) Oviducal funnel, (V) Uterus (VI) Cervix

Question 77: Palette 77/112

NEET 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 78: Palette 78/112

NEET 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

C

Epididymis to vas deferens

D

Ovary to uterus

Question 79: Palette 79/112

NEET 2010 MCQ

Signals from fully developed foetus and placenta ultimately lead to parturition which requires the releas of

A

Oxytocin from maternal pituitary

B

Oxytocin from foetal pituitary

C

Relaxin from placenta

D

Estrogen from placenta

Question 80: Palette 80/112

NEET 2010 MCQ

Secretions from which one of the following are rich in fructose, calcium and some enzymes?

A

Liver

B

Pancreas

C

Salivary glands

D

Male accessory glands

Question 81: Palette 81/112

NEET 2010 MCQ

In human female the blastocyst

A

gets implanted into uterus 3 days after ovulation

B

gets nutrition from uterine endometiral secretion only after implanation

C

gets implanted in endometrium by the trophoblast cells

D

forms placenta even before implantation

Question 82: Palette 82/112

NEET 2010 MCQ

Vasa efferentia are the ductules leading from :

A

Testicular lobules to rete testis

B

Rete testis to vas deferens

C

Vas deferens to epididymis

D

Epididymis to urethra

Question 83: Palette 83/112

NEET 2010 MCQ

Seminal plasma in human males is rich in

A

fructose and calcium

B

glucose and calcium

C

DNA and testosterone

D

ribose and potassium

Question 84: Palette 84/112

NEET 2010 MCQ

The part of Fallopian tube closest to the ovary is

A

Isthmus

B

Infundibulum

C

Cervix

D

Ampulla

Question 85: Palette 85/112

NEET 2010 MCQ

Which one of the following statements about human sperm is correct?

A

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

B

The sperm lysins in the acrosome dissolve th egg envelope facilitating fertilisation

C

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

D

Acrosome serves no particular function

Question 86: Palette 86/112

NEET 2010 MCQ

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

A

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

B

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

C

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

D

It has more cytoplasm and more DNA than an uncleaved zygote

Question 87: Palette 87/112

NEET 2010 MCQ

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

A

Fourth month

B

Fifth month

C

Sixth month

D

Third month

Question 88: Palette 88/112

NEET 2010 MCQ

The second maturation division of the mammalian ovum occurs

A

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

B

Until after the ovum has been penetrated by a sperm

C

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

D

in the Grafian follicle following the first maturation division

Question 89: Palette 89/112

NEET 2010 MCQ

Sertoli cells are found in :

A

ovaries and secrete progesterone

B

adrenal cortex and secrete adrenaline

C

seminiferous tubules and provide nutrition to germ cells

D

pancreas and secrete cholecystokinin

Question 90: Palette 90/112

NEET 2009 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 - spermatid - spermatocyte - sperms

C

spermatid - spermatocyte - spermatogonia - sperms

D

spermatogonia - spermatocyte - spermatid - sperms

Question 91: Palette 91/112

NEET 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

Retention of well-developed corpus luteum

B

Maintenance of high concentration of sexhormones in the blood stream

C

Maintenance of the hypertrophical endometrial lining

D

Fertilization of the ovum

Question 92: Palette 92/112

NEET 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

Menstruation: Breakdown of myometrium and ovum not fertilized

C

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

D

Proliferative phase : Rapid regeneration of myometrium and maturation of Grafian follicle

Question 93: Palette 93/112

NEET 2009 MCQ

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

A

Fertilization

B

Pattern of cleavage

C

Formation of zygote

D

Number of blastomeres produced

Question 94: Palette 94/112

NEET 2009 MCQ

Foetal ejection reflex in human female is induced by

A

Pressure exerted by amniotic fluid

B

Differentiation of mammary glands

C

Release of oxytocin from pituitary

D

Fully developed foetus and placenta

Question 95: Palette 95/112

NEET 2009 MCQ

Seminal plasma in humans is rich in :

A

Fructose, calcium and certain enzymes

B

Fructose and certain enzymes but poor calcium

C

Glucose and certain enzymes but has no calcium

D

Fructose and calcium but has no enzyme

Question 96: Palette 96/112

NEET 2009 MCQ

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

A

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

Question 97: Palette 97/112

NEET 2008 MCQ

Which one of the following statements is incorrect about menstruation?

A

The beginning of the cycle of menstruation is called menarche

B

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

C

The menstrual fluid can easily clot

D

During normal menstruation about 40 ml blood is lost

Question 98: Palette 98/112

NEET 2008 MCQ

In human adult females oxytocin:

A

causes strong uterine contractions during parturition

B

stimulates pituitary to secrete vasopressin

C

stimulates growth of mammary glands

D

is secreted by anterior pituitary

Question 99: Palette 99/112

NEET 2008 MCQ

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

A

secondary spermatocytes

B

spermatogonia

C

primary spermatocytes

D

spermatids

Question 100: Palette 100/112

NEET 2008 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 101/112

NEET 2007 MCQ

Which part of ovary in mammals acts as an endocrine gland after ovulation ?

A

Stroma

B

Vitelline membrane

C

Germinal epithelium

D

Graffian follicle

Question 102: Palette 102/112

NEET 2007 MCQ

In the human female, menstruation can be deferred by the administration of:-

A

LH only

B

Combination of estrogen and progesterone

C

FSH only

D

Combination of FSH and LH

Question 103: Palette 103/112

NEET 2006 MCQ

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

A

Progesterone

B

FSH

C

FSH-RH

D

Estrogen

Question 104: Palette 104/112

NEET 2006 MCQ

Sertoli cells are regulated by the pituitary hormone known as-

A

LH

B

FSH

C

GH

D

Prolactin

Question 105: Palette 105/112

NEET 2005 MCQ

Grey crescent is the area -

A

Just opposite to the site of entry of sperm into ovum

B

At the point of entry of sperm into ovum

C

At the vegetal pole

D

At the animal pole

Question 106: Palette 106/112

NEET 2005 MCQ

If mammalian ovum fails to get fertilized, which one of the following is unlikely

A

Corpus luteum will disintegrate

B

Estrogen secretion further decreases

C

Primary follicle starts developing

D

Progesterone secretion rapidly declines

Question 107: Palette 107/112

NEET 2004 MCQ

Which of the following hormones is not a secretion product of human placenta -

A

Estrogen

B

Progesterone

C

Prolactin

D

Human chorionic gonadotropin

Question 108: Palette 108/112

NEET 2004 MCQ

Ovulation in the human female normally takes place during the menstrual cycle -

A

At the beginning of the proliferative phase

B

At the mid secretory phase

C

Just before the end of the secretory cycle

D

At the end of the proliferative phase

Question 109: Palette 109/112

NEET 2003 MCQ

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

A

Organizer phenomena

B

Pattern formation

C

Axis formation

D

Anamorphosis

Question 110: Palette 110/112

NEET 2002 MCQ

What is true for cleavage : -

A

Size of embryo decrease

B

Size of embryo increase

C

Size of cells increase

D

Size of cells decrease

Question 111: Palette 111/112

NEET 2001 MCQ

Which set is similar : -

A

Vita B₇ - Niacin

B

Sebum-sweat

C

Corpus luteum – graffian follicles

D

Bundle of his – Pace macker

Question 112: Palette 112/112

NEET 2000 MCQ

Blastopore is the pore of :

A

A.C.

B

Archenteron

C

Blastocoel

D

Coelom