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Q.

At which stage of life is the oogenesis process is initiated?

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a

Adult

b

Puberty

c

Birth

d

Embryonic development stage

answer is A.

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Detailed Solution

Oogenesis is initiated during the embryonic development stage when a couple of million gamete mother cells (oogonia) are formed within each foetal ovary; no more oogonia are formed and added after birth. These cells start division and enter prophase-I of the meiotic division and get temporarily arrested at that stage, called primary oocytes.

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