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Question
Which enzyme digests a localized hole in the zona pellucida to allow sperm entry?
Options
Corona Penetrating Enzyme (CPE)
Hyaluronidase
Acrosin/Zona Lysin
Amylase
MCQ
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Solution
Acrosin, also called Zona Lysin, digests a localized hole in the zona pellucida, allowing the sperm head to push through and penetrate the egg during fertilization.
shaalaa.com
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