CBSE - Human Reproduction MCQs | CBSE Solution of Class 12 Biology Human Reproduction

61 In oogenesis which substance are present in primary oocyte of growth phase

[1] Fat and proteins

[2] DNA, RNA

[3] ATP and enzyme

[4] Above all

Answer: Above all

62 The metamorphosis of the spermatids in to the sperms is known as.......

[1] Multiplication phase

[2] The maturation phase

[3] The growth phase

[4] Spermiogenesis

Answer: Spermiogenesis

63 During puberty stage, which sex hormone stimulate the enlargement of breast ?

[1] Progesterone

[2] Estrogen

[3] Testosterone

[4] (1) and (2) both

Answer: Estrogen

64 What is the shaped of uterus ?

[1] Inverted appleshaped

[2] Inverted mango shaped

[3] Inverted pear shaped

[4] None of this

Answer: Inverted pear shaped

65 What is the structure consist of mature ovum and its surrounding tissues its called ?

[1] Mature ovum

[2] Ovarian follicles

[3] Graffian follicle

[4] Corpus luteum

Answer: Graffian follicle

66 What is called a capsule of collagenous connective tissue immediately after the germinal epithelium of ovaries?

[1] Stroma

[2] Tunica albuginea

[3] Ovarian epithelium

[4] None of them

Answer: Tunica albuginea

67 Which tissue layer covers the ovary ?

[1] Columnar epithelium

[2] Squamous epithelium

[3] Ciliary epithelium

[4] Cuboidal epithelium

Answer: Cuboidal epithelium

68 What is PH of vaginal fluid ?

[1] 3.5 to 4.0

[2] 3.6 to 4.1

[3] 3.7 to 4.2

[4] 3.8 to 4.3

Answer: 3.5 to 4.0

69 The seminal vesicle are located at ?

[1] Over urinary bladder

[2] Near urinary bladder

[3] Besides urinary bladder

[4] Base of the urinary bladder

Answer: Base of the urinary bladder

70 What is length of vas deference ?

[1] 45 inch

[2] 45 mm

[3] 45 cm

[4] 4.5 meter

Answer: 45 cm

71 In testis which cells produce sperms?

[1] Germinal cells

[2] Epithelial cell

[3] Sertoli cell

[4] Both 1 and 3

Answer: Germinal cells

72 Where testes are situated?

[1] Abdominal cavity

[2] Dorsalside of abdominal cavity

[3] (1) and (2) both

[4] Scrotal sac.

Answer: Scrotal sac.

73 Where seminiferous tubules of each lobe empty sperms ?

[1] Vas deference

[2] Epididymus

[3] Epididymus

[4] Seminal vesicles

Answer: Epididymus

74 What percentage of semen is produced by seminal vesicles ?

[1] 50%

[2] 55%

[3] 60%

[4] 65%

Answer: 60%

75 The average volume of semen for each ejaculation is ......

[1] 3 to 4 ml

[2] 3.5 to 4.5 ml

[3] 4 to 5 ml

[4] 4.5 to 5.5 ml

Answer: 3 to 4 ml

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