The meiotic division of the secondary oocyte | vedclass

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(D) The primary oocyte completes its first meiotic division to form a secondary oocyte and a first polar body before ovulation. The secondary oocyte t

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At the time of fusion of a sperm with an ovum

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(D) The primary oocyte completes its first meiotic division to form a secondary oocyte and a first polar body before ovulation. The secondary oocyte then enters the second meiotic division but gets arrested at the metaphase-$II$ stage. This second meiotic division is completed only when a sperm cell enters the secondary oocyte during fertilization. Therefore,the fusion of a sperm with an ovum triggers the completion of the second meiotic division.

The meiotic division of the secondary oocyte is completed at the time of ................

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