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Question
In human, during fertilisation, a sperm firstly comes in contact with which layer of the ovum.
In human, during fertilisation, a sperm firstly comes in contact with which layer of the ovum.
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Solution
The correct option is D Corona radiata
Corona radiata is cellular layer around a mature ovum. Sperm has to penetrate through this by using hyaluronidase enzyme to reach up to zone pellucida membrane, which is acellular.
Corona radiata is cellular layer around a mature ovum. Sperm has to penetrate through this by using hyaluronidase enzyme to reach up to zone pellucida membrane, which is acellular.
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