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Human Reproduction

397 Questions Start Errorless Test
All Exams Allen Errorless
Q376 Errorless 13. Critical Thinking 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
Q377 Errorless 14. Self Evaluation Test MCQ
The size of human egg is
A.
1.5 mm
B.
0.15 mm
C.
0.05 mm
D.
0.3 mm
Q378 Errorless 14. Self Evaluation Test MCQ
Termination of gastrulation is marked by
A.
Obliteration of archenteron
B.
Closure of neural tube
C.
Obliteration of blastocoel
D.
Closure of blastopore
Q379 Errorless 14. Self Evaluation Test MCQ
The formation of the notochord takes place by
A.
Primary ectoderm
B.
Primary mesoderm
C.
Primary endoderm
D.
None of the above
Q380 Errorless 14. Self Evaluation Test 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
Q381 Errorless 14. Self Evaluation Test 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
Q382 Errorless 14. Self Evaluation Test MCQ
The eggs of insects are
A.
Mesolecithal and centrolecithal
B.
Macrolecithal and centrolecithal
C.
Mesolecithal and telolecithal
D.
Macrolecithal and telolecithal
Q383 Errorless 14. Self Evaluation Test 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
Q384 Errorless 14. Self Evaluation Test MCQ
Which type of hormone controls the menstrual cycle in human beings?
A.
LH
B.
FSH
C.
Progesterone
D.
FSH, LH, Estrogen
Q385 Errorless 14. Self Evaluation Test 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
Q386 Errorless 14. Self Evaluation Test MCQ
The first milk coming out from mother's mammary glands just after childbirth is called
A.
Testosterone
B.
Colostrum
C.
Estrogen
D.
Progesterone
Q387 Errorless 14. Self Evaluation Test MCQ
The group of anamniota includes
A.
ACTH
B.
Progesterone
C.
GH
D.
Gastrin
Q388 Errorless 15. Assertion and Reason 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.
Q389 Errorless 15. Assertion and Reason 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.
Q390 Errorless 15. Assertion and Reason 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.
Q391 Errorless 15. Assertion and Reason 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.
Q392 Errorless 15. Assertion and Reason 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.
Q393 Errorless 15. Assertion and Reason 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.
Q394 Errorless 15. Assertion and Reason 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.
Q395 Errorless 15. Assertion and Reason 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.
Q396 Errorless 15. Assertion and Reason 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.
Q397 Errorless 15. Assertion and Reason 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.