In human females,meiosis-II is not completed | vedclass

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(D) The correct answer is $D$. In human females,the secondary oocyte is released from the ovary during ovulation. The process of meiosis-$II$ remains

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fertilisation.

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(D) The correct answer is $D$. In human females,the secondary oocyte is released from the ovary during ovulation. The process of meiosis-$II$ remains arrested at the metaphase-$II$ stage. The completion of meiosis-$II$ occurs only when a sperm enters the secondary oocyte during the process of fertilisation. The entry of the sperm triggers the degradation of $MPF$ ($M$-phase promoting factor) and activates the $APC$ ($Anaphase$ promoting complex),allowing the cell to complete the second meiotic division,resulting in the formation of a mature ovum and a second polar body.

In human females,meiosis-$II$ is not completed until

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