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प्रश्न
How is polyspermy prevented in humans?
How is polyspermy prevented?
लघु उत्तर
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उत्तर
When a sperm comes in contact with the zona pellucida layer of the ovum, it induces changes in the membrane of the ovum to block the entry of additional sperms. This, thus, prevents the polyspermy and ensures that only one sperm can fertilise an ovum.
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पाठ 3: Human Reproduction - EXERCISES [पृष्ठ १७२]
