Read the following statements about gametogenesis in humans.
a) Spermatogenesis is initiated during the embryonic stage.
b) Second meiotic division of oogenesis results in the formation of secondary oocyte and second polar body.
c) No spermatogonia formed and added after birth.
d) Primary oocyte completes its first meiotic division within the tertiary follicle.
e) Spermatids transform into sperms by spermiogenesis.
Choose the incorrect statements.

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d, e only

c, d, e only

a, b, c only

a, b only

answer is A.

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Detailed Solution

(a), (b) and(c) are incorrect.

a) Spermatogenesis is initiated at puberty.

b) First meiotic division of oogenesis results in the formation of secondary oocyte and first polar body.

c) No oogonia are formed or added after birth.

d) Primary oocyte completes its first meiotic division within the tertiary follicle.

e) Spermatids transform into sperms by spermiogenesis.

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