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What is true in the process of fertiliza...

What is true in the process of fertilization

A

Only one sperm reaches the egg and enters it

B

The entry of sperm activates the egg for completing meiosis

C

Two haploid nuclei fuse and immediately divide to produce two nuclei which are again haploid

D

Only the acrosome of the sperm enters the egg

Text Solution

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The correct Answer is:
B
Only one sperm out of many enters the cell. The entry activates the egg by removing the arresting stage metaphase–II of cell cycle. As a result of fusion of sperm with secondary oocyte it divides meiosis-II to form second polar body and ovum. Two haploid nuclei (sperm and ova) fuse and immediately divide mitotically to produce two nuclei which are diploid. Only the nucleus of the sperm enters into the egg.
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