1000+ Human reproductive system MCQ for UPSC IES [Solved]

1. What are the chances of a normal fertile couple having a baby in one year?
A. 40%
B. 80%
C. 20%
D. 50%
Answer : B

2. In menstrual cycle the secretory phase is also known as
A. luteal phase and lasts for 6 days
B. Luteal phase and lasts for 13 days
C. Follicular phase and lasts for 13 days
D. Follicular phase and lasts for 6 days
Answer : B

3. Human placenta is
A. Endothelial
B. Haemochorial
C. Epitheliochorial
D. Syndesmochorial
Answer : B

4. 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

5. Ovulation occurs under the influence of high titre of
A. LH
B. FSH
C. Estrogen
D. Progesterone
Answer : A

6. Haemophilic man marries a normal woman. Their off springs will be
A. All haemophilic
B. All boys haemophilic
C. All girls haemophilic
D. All normal
Answer : D

7. Fimbriae of fallopian tube ...
A. Release ovum from graffian follicle
B. Cause endometrial changes for implantation
C. Help develop corpus luteum
D. Help collection of ovum after ovulation
Answer : D

8. Sickle cell anaemia induce to
A. Change of amino acid in a- chain of haemoglobin
B. Change of amino acid in b- chain of haemoglobin
C. Change of amino acid in both a and b chains of haemoglobin
D. Change of amino acid either a or b chains of haemoglobin
Answer : B

9. Cryptorchidism is ...
A. Nondescent of testes in scrotum
B. Nondevelopment of testes
C. Removal of scrotum
D. Breaking connection of vas deferens
Answer : A

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

11. 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

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

13. 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

14. The part of the sperm containing proteolytic enzymes to digest the zona pellucida is the:
A. Capacitor
B. Head
C. Corona
D. Acrosome
Answer : D

15. Decreased motility of sperm <40 % is known as
A. Azoospermia
B. Oligospermia
C. Asthenozoospermia
D. Necrozoospermia
Answer : C

16. Chorionic gonadotropin is secreted by ...
A. Pituitary
B. Ovary
C. Placenta
D. Uterus
Answer : C

17. Third phase of embryo development is ...
A. Cleavage
B. Fertilization
C. Gametogenesis
D. Gastrulation
Answer : D

18. 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

19. 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

20. What is Hirsuitism in females? (Usually with Poly cystic ovarian disease)
A. Unusually tall
B. Abnormal growth of facial and body hair
C. Abnormal voice
D. Short stature
Answer : B

21. Which of the following statements is most correct about the human menstrual cycle.
A. The menstrual cycle in all women is a 28 day cycle
B. Ovulation always occurs at the midpoint of the menstrual cycle
C. A high body temperature indicates ovulation is occurring
D. The menstrual cycle is an endocrine cycle regulating reproductive physiological changes
Answer : D

22. Human embryo is referred to as fetus from beginning of
A. 1st month of pregnancy
B. 2nd month of pregnancy
C. 3rd month of pregnancy
D. 4th month of pregnancy
Answer : C

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

24. A genetically diseased father (male) marries with a normal female and gives birth to 3 carrier girls and 5 normal sons. Find out the type of genetic disease.
A. Sex-influenced disease
B. Blood group inheritance disease
C. Sex-linked disease
D. Sex-recessive disease
Answer : C

25. The functional unit of testis of man is ...
A. Uriniferous tubules
B. Malpighian tubules
C. Seminiferous tubules
D. Acini or lobules
Answer : C

26. In ectopic pregnancy, foetus grows in ...
A. Vagina
B. Fallopian tube
C. Uterus
D. Body cavity
Answer : B

27. Highly sophisticated procedure of injecting sperm directly into the ovum is
A. GIFT
B. ZIFT
C. ICSI
D. IUI
Answer : C

28. Emergency contraceptives may prevent pregnancy if used within 72 hrs of
A. Menstruation
B. Fertilization
C. Ovulation
D. Coitus
Answer : D

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

30. Level of estrogen and progesterone are minimum at the time of
A. Follicular phase
B. Ovulation
C. Secretory phase
D. Onset of menstrual phase
Answer : D

31. Mammary glands are modification of ...
A. Sebaceous glands
B. Sweat glands
C. Meibomian glands
D. None of the above
Answer : B

32. 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

33. Which one occurs first in the human embryo
A. Neurogenesis
B. Cardiogenesis
C. Hepatogenesis
D. Osteogesis
Answer : A

34. 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

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

36. Albinism is a congenital disorder resulting from the lack of which enzyme?
A. Tyrosinase
B. Xanthine oxidase
C. Catalase
D. Fructokinase.
Answer : A

37. The chemical of the ovum that attracts and holds sperm
A. Fertilizin
B. Antifertilizin
C. Agglutin
D. Antiagglutinin
Answer : A

38. Mongolian idiocy due to trisomy in 21st chromosome is known as
A. Downs syndrome
B. Turners syndrome
C. Klinefelters syndrome
D. Triple x syndrome
Answer : A

39. A child's blood group is 'o'. The parent's blood groups cannot be
A. A AND B
B. A AND A
C. AB AND O
D. B AND O
Answer : C

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. Prostate gland produces a secretion for ...
A. Attracting sperms
B. Stimulating sperm activity
C. Inhibiting sperm activity
D. None of the above
Answer : B

42. Pregnancy can be detected as early as on
A. 28 th day of cycle
B. 8th week
C. 40 th day of the cycle
D. 10 th week
Answer : A

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

44. Embryo at 16-celled stage is called ...
A. Morula
B. Blastula
C. Blastomere
D. Gastrula
Answer : A

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

46. Temperature in scrotum necessary for sperm formation is usually ...
A. 2°c above body temperature
B. 2° c below body temperature
C. 4°c above body temperature
D. 4° c below body temperature
Answer : B

47. 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

48. During ovulation, for favourable sperm travel oestrogen causes
A. Cervical mucus to become stretchy and clear
B. Less cervical mucus production
strong>C. Tenderness of cervix
D. Slight vaginal bleeding
Answer : A

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

50. In infertility treatment the ovum is fertilized outside the body and injected into the uterus
A. Gamete intra fallopian transfer
B. Invitro fertilization
C. Intra uterine insemination
D. Zygote intra fallopian transfer
Answer : B