JIPMER 2014
- Exam
- JIPMER
- Year
- 2014
- Subject
- Zoology
- Chapter
- Human Reproduction
JIPMER 2014 · Zoology · Human Reproduction
In human during fertilisation a sperm firstly comes in contact with...
In human during fertilisation a sperm firstly comes in contact with which layer of ovum
Options
- Azona pellucida
- Bvitelline membrane
- Cjelly coat
- 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.