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What Is Fertilisation?

The changes i...

Question

The changes in which layer or membrane of ovum check the entry of additional (more than one) sperms?

A

Zona pellucida

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B

Trophoblast

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C

Blastomer

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D

Placenta

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Solution

The correct option is A
Zona pellucida

The zona pellucida layer of the ovum shows certain changes after the penetration of sperm and thus checks the entry of additional sperms.

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What Is Fertilisation?

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