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JIPMER2014ZoologyHuman Reproduction

In human during fertilisation a sperm firstly comes in contact with which layer of ovum

Options

  1. Azona pellucida
  2. Bvitelline membrane
  3. Cjelly coat
  4. Dzona radiata

Correct answer

D. zona radiata

Step-by-step solution

Zona radiata is cellular layer around a mature ovum. Sperm has to penetrate through this by using hyaluronidase enzyme to reach upto zone pellucide membrane, which is acellular.

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