Multiple choice

Formation of fertilization membrane is a sort of defence reaction, primarily meant to

  1. prevent entrance of more than one sperm

  2. activate the egg to make it undergo change

  3. bring change in the composition of cytoplasm

  4. induce physiological changes
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A Correct answer
Explanation

Formation of fertilization membrane is a sort of defence reaction, primarily meant to prevent entrance of more than one sperm.

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