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2.Human Reproduction
normal

The second maturation division of the mammalian ovum occurs

Solution

In mammalian ovum during maturation phase, meiosis occurs. Nucleus shift towards animal pole and undergoes meiosis-$I$. After fertilization (penetration of sperm), the second meiotic division is completes with unequal cytoplasmic cleavage. This forms a large cell the ootid with essentially whole of the cytoplasm and a very small cell, the second polar body.

Std 12
Biology

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