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Biology 12 Chapter - 20 Reproduction - 6
1.
Secondary spermatocyte is…………….?
a) Polyploid
b) Haploid
c) Triploid
d) Diploid
2.
Primary spermatocyte is…………….?
a) Polyploid
b) Diploid
c) Haploid
d) Triploid
3.
What are the characteristics of spermatid?
a) Round
b) Non motile
c) All of the above
d) Haploid
4.
What are the characteristics of sperm?
a) No cytoplasm
b) Motile and active
c) Elongated having a tail
d) All of the above
5.
Which is not correct regarding sperm?
a) Non motile
b) Elongated having a tail
c) Active
d) No cytoplasm
6.
Spermatogenesis begins around the age of…………years?
a) 16
b) 18
c) 14
d) 12
7.
When does spermatogenesis stop in man?
a) At the age of 70s
b) At the age of 50s
c) Never stops
d) At the age of 60s
8.
What is the amount of sperms produced per day by healthy adult man?
a) 300 million
b) 200 million
c) 400 million
d) 600 million
9.
How many stages do spermatids undergo to form sperms?
a) 4
b) 2
c) 3
d) 1
10.
Where does the nucleus of sperm lie?
a) Head
b) Tail
c) Midpiece
d) Neck
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