When is the second polar body extruded from t | vedclass

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Question

(A) The secondary oocyte remains arrested in the metaphase-$II$ stage of meiosis-$II$. The entry of the sperm into the secondary oocyte triggers the c

Vedclass · Accepted Answer

After the entry of the sperm but before the completion of fertilization

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(A) The secondary oocyte remains arrested in the metaphase-$II$ stage of meiosis-$II$. The entry of the sperm into the secondary oocyte triggers the completion of meiosis-$II$. This process results in the formation of a large haploid ovum (ootid) and a small second polar body. Therefore,the extrusion of the second polar body occurs after the entry of the sperm but before the fusion of the male and female pronuclei (completion of fertilization).

When is the second polar body extruded from the oocyte nucleus?

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