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What Is Fertilisation?

Formation of ...

Question

Formation of activation calyx in the egg takes place

A

Before fertilization

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B

After fertilization

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C

At the time of Cleavage

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D

At the time of Amphimixis

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Solution

The correct option is C After fertilization
The activation of an egg by the sperm is mainly carried by the interaction of sperm protein with the protein on the egg. Immediately after the egg is activated by the sperm the primary envelope becomes detached from the oolemma, and forms the activation calyx
So, the correct answer is 'After fertilization'

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