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(C) The correct answer is $C$. Antifertilizin is a proteinaceous substance found on the surface of the sperm head. It has a molecular weight of approx

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Antifertilizin

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(C) The correct answer is $C$. Antifertilizin is a proteinaceous substance found on the surface of the sperm head. It has a molecular weight of approximately $1000$ and consists of acidic amino acids. During the process of fertilization,antifertilizin of the sperm reacts with fertilizin of the egg,which facilitates the attachment of the sperm to the egg surface through a chemotactic interaction.

The chemical substance found in the surface layer of cytoplasm of spermatozoa is

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