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Antifertilizin lies on sperm/ovum....

Antifertilizin lies on sperm/ovum.

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### Step-by-Step Solution: 1. **Understanding Antifertilizin**: Antifertilizin is a substance that plays a crucial role in the fertilization process. It is found on the surface of sperm and ovum. 2. **Location of Antifertilizin**: Antifertilizin is located on the outer membrane of the sperm. It is specifically found in the acrosome, which is the cap-like structure at the head of the sperm. 3. **Role of Antifertilizin**: The primary function of antifertilizin is to prevent polyspermy, which is the fertilization of an ovum by multiple sperm. When a sperm successfully attaches to the ovum, antifertilizin helps to shed off other sperm from the ovum's surface. ...
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