Human reproductive system 1000+ MCQ with answer for CAT

1. Which one is not the function of human placenta
A. Helps co2 and excretory products pass from foetus to mother's body
B. Helps o2 and nutrients from mother's body enter the foetus
C. Secretes hormones
D. It protects foetus from mechanical shocks
Answer : D

2. Part of sperm that passes into ovum is
A. Tail
B. Acrosome
C. Head
D. Head, neck and middle piece
Answer : D

3. In a 28 day menstrual cycle, ovulation occurs on ...
A. Day 1
B. Day 5
C. Day 14
D. Day 28
Answer : C

4. When there is no fertilization, the corpus luteum ...
A. Stops secreting progesterone
B. Changes to corpus albicans
C. Starts producing progesterone
D. Begins next cycle
Answer : B

5. Medical termination of pregnancy is safe till how many weeks of pregnancy?
A. 10 weeks
B. 12 weeks
C. 20 weeks
D. 22 weeks
Answer : B

6. Acrosome of sperm contains ...
A. Hyaluronidase and acrosin
B. Hyaluronic acid and acrosin
C. Hippuric acid and uric acid
D. Testosterone
Answer : A

7. Corpus luteum secretes
A. Lh
B. Estrogen
C. Progesterone
D. Fsh
Answer : C

8. In humans female ovulation occurs during menstrual cycle
A. At the end of proliferative phase
B. At the beginning of proliferative phase
C. Before the end of secretary phase
D. In the middle of secretary phase
Answer : A

9. Name the pituitary hormone that regulates sertoli cells
A. Prolactin
B. LH
C. FSH
D. Oxytocin
Answer : C

10. Epididymis is ...
A. A long coiled tube between vasa efferentia and vas deferens
B. Network of sinuses between seminiferous tubules and efferentia
C. Connection between vas deferens and seminal vesicle
D. Intermediate structure between the testis and vasa efferentia
Answer : A

11. Failure of the brain to grow in the foetus may result in:
A. Plagiocephaly
B. Craniostenosis
C. Anencephaly
D. Microcephaly
Answer : D

12. Which part of the ovary act as an endocrine gland in human beings
A. Stroma
B. Vitteline membrane
C. Graffian follicle
D. Epithelium
Answer : C

13. Human embryo is enclosed by a sac called
A. Scrotum
B. Ericardium
C. Placenta
D. Amniotic sac
Answer : D

14. Menstrual phase is followed by .
A. Luteal phase
B. Follicular phase
C. Fertilization
D. Implantation
Answer : B

15. Embryonic connective tissue is formed from ..
A. ectoderm
B. endoderm
C. Mesenchyme
D. Mesogloea
Answer : C

16. Tunica albuginea is related to
A. Prostate gland
B. Pituitary gland
C. Hypothalamus
D. Testes
Answer : D

17. Which part of the foetus is developed from mesoderm?
A. Heart and notochord
B. Heart and brain
C. Spinal cord and notochord
D. Brain and notochord
Answer : A

18. The first milk which comes out just after child birth is known as .
A. Colostrum
B. Prolactin
C. Hind milk
D. Lactogen
Answer : A

19. Gestation period of 280 days is calculated from time of ...
A. Last menstruation
B. Fertilization
C. First day of last menstruation
D. Ovulation
Answer : C

20. Approximately how long does it take for a spermatocyte to complete its differentiation into a spermatozoan in the testis?
A. 7 days
B. 70 days
C. 7 months
D. 70 hours
Answer : B

21. In which phase of menstrual cycle ovulation occurs in
A. Luteal
B. Menstrual
C. Proliferative
D. Secretory
Answer : C

22. In uterus, endometrium proliferates in response to ...
A. Relaxin
B. Oxytocin
C. Progesterone
D. Oestrogen
Answer : D

23. Hormones that control the growth and maturation of graffian follicle is
A. FSH - LH
B. FSH - ICSH
C. ACTH - LH
D. GH - ADH
Answer : A

24. In human embryo, the digestive system develops from the
A. Epithelium
B. Mesoderm
C. Endoderm
D. Ectoderm
Answer : C

25. What happens during fertilization when many sperms reach close to ovum ....
A. Cells of corona radiata trap all the sperm except one
B. Only two sperms nearest to ovum penetrate zona pellucida
C. Secretion of acrosome helps one sperm enter cytoplasm of ovum through zona pellucida
D. All sperms except the one nearest to ovum lose their tails
Answer : C

26. Amniotic fluid protects the foetus from ...
A. Shock
B. Abortion
C. Degeneration
D. Disease
Answer : A

27. Which one of the following is produced early in the life of a human female?
A. Relaxin
B. Oxytocin
C. Prolactin
D. Progesterone
Answer : C

28. Part of fallopian tube closest to ovary is
A. Infundibulum
B. Cervix
C. Ampulla
D. Isthmus
Answer : A

29. After ovulation graffian follicles turns into
A. Corpus luteum
B. Corpus albicans
C. Corpus callosum
D. Corpus artesia
Answer : A

30. In a semen analysis, the following is not acceptable as normal�
A. 25 % abnormal forms
B. 60% motility after 3 hours
C. Mild Alkaline reaction
D. Sperm count of 17 million per ml.
Answer : D

31. Most of major organs of human embryo are formed by the
A. 16th week of pregnancy
B. 15th week of pregnancy
C. 14th week of pregnancy
D. 12th week of pregnancy
Answer : D

32. Increase in basal body temperature in the middle of menstrual cycle is a sign of
A. Fertilization
B. Onset of menstruation
C. Menopause
D. Ovulation
Answer : D

33. Sertoli cells are found in
A. Seminiferous tubules
B. Ovaries
C. Prostate gland
D. Semen
Answer : A

34. Which one takes part in formation of placenta? ...
A. Only trophoblast
B. Only allantois
C. Trophoblast and mesoderm
D. Trophoblast and mesoderm and allantois
Answer : D

35. An abnormal human male phenotype involving an extra x-chromosome (xxy) is found in....
A. Edwards syndrome
B. Klinefelters syndrome
C. Intersex
D. Downs syndrome.
Answer : B

36. Fertility in women may be impaired by
A. Hypertension
B. Gall stones
C. Obesity
D. Short stature
Answer : C

37. Membrane that gives protection to embryo from external shocks is
A. Amnion
B. Allantois
C. Chorion
D. Placenta
Answer : A

38. What is the name of the inner lining of the uterus?
A. Myometrium
B. Endometrium
C. Epithelium
D. Endothelium
Answer : B

39. Human eggs are
A. Mesolecithel
B. Microlecithel
C. Macrolecithel
D. Alecithel
Answer : D

40. Immediately after ovulation, the ovum is covered by a membrane called
A. Chorion
B. Zona pellucida
C. Corona radiata
D. Vitelline membrane
Answer : B

41. Normal sperm count is
A. 40 to 300 million per ml
B. 10 to 20 million per ml
C. < 10 million per ml
D. 200 million per ml
Answer : A

42. Fertilization is fusion of ..
A. Diploid spermatozoan with diploid ovum to form diploid zygote
B. Haploid spermatozoan with diploid ovum to form diploid zygote
C. Diploid spermatozoan with haploid ovum to form diploid zygote
D. Haploid spermatozoan with haploid ovum to form diploid zygote
Answer : D

43. Which layer of embryo is formed first
A. ectoderm
B. Mesoderm
C. Endoderm
D. Mesenchyma
Answer : C

44. The pre fertilisation process stage of sperm before entry into the ovum is called as
A. Maturation
B. Insemination
C. Capacitation
D. Fertilization
Answer : C

45. When is the best time to get FSH levels checked?
A. Day 7 of the menstrual cycle
B. Day 21 of the menstrual cycle
C. Day 3 of the menstrual cycle
D. Day 14 of the menstrual cycle
Answer : C

46. Fertilization of the ovum takes place in
A. Ovary
B. Uterus
C. Fallopian tube ampulla
D. Cervix
Answer : C

47. At the end of meiosis I, the Oocyte yields
A. Secondary Oocyte and first polar body
B. First polar body
C. Secondary Oocyte
D. Second polar body
Answer : A

48. Cell division that occurs in zygote is called
A. meiosis
B. Mitosis
C. Cleavage
D. Differentiation
Answer : C

49. The male hormone testosterone is secreted by
A. Sertoli cells
B. Leydig cells
C. Crypt cells
D. Semniferous tubules
Answer : B