SSC CGL - Human reproductive system 1000+ MCQ [Solved] PDF Download

1. The most important region of the decidua for the nourishment of the conceptus is the deciduas
A. Frondosum
B. Capsularis
C. Parietalis
D. Basalis
Answer : D

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

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

4. The number and appearance of chromosomes in the nucleus of a eukaryotic cell is called as
A. Karyotype
B. Genotype
C. Phenotype
D. Cytogenetics
Answer : A

5. Which of the following is not a hereditary disease?
A. Cystic fibrosis
B. Thalassaemia
C. Haemophilia
D. Cretinism
Answer : D

6. 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

7. The gonadotropic hormones are secreted by
A. Anterior pituitary
B. Posterior pituitary
C. Adrenals
D. Ovaries
Answer : A

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

9. After fertilization, implantation of human embryo takes place on
A. 10 th day
B. 14 th day
C. 7 th day
D. 3 rd day
Answer : C

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

11. Number of chromosomes in secondary oocyte stage in humans is ...
A. 23
B. 46
C. 18
D. 20
Answer : A

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

13. The middle piece of the sperm contains
A. Protein
B. Nucleus
C. Mitochondria
D. Centriole
Answer : C

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

15. HCG, HPL and relaxin are produced in women ...
A. At puberty
B. During pregnancy
C. Before puberty
D. At menopause
Answer : B

16. Correct sequence of hormone secretion from beginning of menstruation is ...
A. FSH, progesterone, estrogen
B. Estrogen, fsh, progesterone
C. FSH, estrogen, progesterone
D. Estrogen, progesterone, FSH
Answer : C

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

18. Corona radiata is held by...
A. Mucopolysaccharide
B. Oligosaccharide
C. Lipopolysaccharide
D. Lipoprotein
Answer : A

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

20. The embryonic stage that resembles a mulberry fruit is
A. Nerula
B. Gastrula
C. Morula
D. Blastula
Answer : C

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

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

23. 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

24. The number of chromosomes present in sperms
A. 46
B. 23
C. 23 + X
D. 23+ Y
Answer : B

25. 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

26. Pregnancy is ascertained by
A. Insemination
B. Copulation
C. Implantation
D. Capacitation
Answer : C

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

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

29. 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

30. 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

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

32. 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

33. 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

34. 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

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

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

37. The surgical method of contraception in males
A. Hysterectomy
B. Vasectomy
C. Castration
D. Circumcision
Answer : B

38. Total numbers of ovum released in the life time of a woman is approximately
A. 40
B. 400
C. 4000
D. 20000
Answer : B

39. Cri-du-chat syndrome in humans is caused by the
A. Trisomy of 21st chromosome
B. Fertilization of an xx egg by a normal y-bearing sperm
C. Loss of half of the short arm of chromosome 5
D. Loss of half of the long arm of chromosome 5
Answer : C

40. 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

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

42. Layers of ovum from outside to inside are .
A. Corona radiata, zona pellucida, vitelline membrane
B. Zona pellucida, corona radiata, vitelline membrane
C. Vitelline membrane, zona pellucida, corona radiata
D. Zona pellucida, vitelline membrane, corona radiate
Answer : A

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

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

45. 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

46. Villi of human placenta develop from ..
A. Chorion
B. Allantois
C. Yolk sac
D. Amnion
Answer : A

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

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

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

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