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Free Download as PDF of the detailed solutions for class 12 Biology from NCERT or CBSE text book as per exam pattern, to help you in day to day learning. We provide all important questions and answers from chapter Human Reproduction of Biology.
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
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
63
During puberty stage, which sex hormone stimulate the enlargement of breast ?
[1]
Progesterone
[2]
Estrogen
[3]
Testosterone
[4]
(1) and (2) both
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
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
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
71
In testis which cells produce sperms?
[1]
Germinal cells
[2]
Epithelial cell
[3]
Sertoli cell
[4]
Both 1 and 3
72
Where testes are situated?
[1]
Abdominal cavity
[2]
Dorsalside of abdominal cavity
[3]
(1) and (2) both
[4]
Scrotal sac.
73
Where seminiferous tubules of each lobe empty sperms ?
[1]
Vas deference
[2]
Epididymus
[3]
Epididymus
[4]
Seminal vesicles
74
What percentage of semen is produced by seminal vesicles ?
[1]
50%
[2]
55%
[3]
60%
[4]
65%
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
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