NCERT Solution of Class 12 Biology Human Reproduction | NCERT Multiple Choice Questions and Answers of Biology from Chapter Human Reproduction | Biology - Human Reproduction MCQs

Questions

16 Which is part of vulva is considered equivalent to the male penis

1 Clitoris

2 Hymen

3 Mons

4 Pubis

View Answer

Answer: Clitoris

17 Which cells produces of spermatids ?

1 Secondary germinal cells

2 Spermatogonium

3 Primary germinal cells

4 Spermatocytes

View Answer

Answer: Primary germinal cells

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18 In spermatogenesis which processes occur for secondary spermatocyte ?

1 Mitotic

2 Meiosis

3 Amitosis

4 (1) and (2) both

View Answer

Answer: Meiosis

19 The acrosome is formed by the.....

1 Mitochondria

2 Golgicomplex

3 Ribosomes

4 Nucleus

View Answer

Answer: Golgicomplex

20 In oogenesis which cells are produced at the first division of primary oocyte in maturation phase ?

1 Secondary oocyte

2 First polar body

3 Secondary polar body

4 (1) and (2) both

View Answer

Answer: (1) and (2) both

21 The events of menstrual cycle are comprised of .... days.

1 27 days

2 29 days

3 28 days

4 30 days

View Answer

Answer: 28 days

22 In menstrual cycle during which days rising estrogen levels ?

1 1 to 5 days

2 14 to 15 days

3 15 to 28 days

4 6 to 14 days

View Answer

Answer: 6 to 14 days

23 In fertilization which part of sperm enters the secondary oocyte ?

1 Tail

2 Head

3 Middle part

4 (2) and (3) both

View Answer

Answer: (2) and (3) both

24 The division of it forms in to 16 daughter cells..called....

1 Blasto cell

2 Blastomeres

3 Morula

4 (1) and (2) both

View Answer

Answer: Blastomeres

25 In humans after implantation what is the elaborate projection developed from trophoblast called ?

1 Embryonic Layer

2 Placenta

3 Chorionic vili

4 Umbilical cord

View Answer

Answer: Chorionic vili

26 Which part present between placenta and embryo ?

1 Umbilical cord

2 Amniotic cavity

3 Embryonic disc

4 (2) and (3) both

View Answer

Answer: Umbilical cord

27 How much blood is lost during menstrual cycle period ?

1 25 to 100 ML

2 50 to 150 ML

3 75 to 175 ML

4 20 to 75 ML

View Answer

Answer: 20 to 75 ML

28 Which is incorrect for sexual dimorphism of male ?

1 Mammary gland is namesake only

2 Voice is shrill

3 Muscle are strong

4 Beard and mustache develops

View Answer

Answer: Voice is shrill

29 Identify the part-a

1 Spermatid

2 Secondary spermatocyte

3 Primary Spermatocyte

4 Sertoli cell

View Answer

Answer: Secondary spermatocyte

30 In human the unpaired male reproductive structure is ... ...

1 Seminal vesicle

2 Prostate

3 Bulbourethral gland

4 Testes

View Answer

Answer: Prostate

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