Arrange the following cell layers/structures around the female gamete, from outer to inner side : Choose the correct answer from the options given below :
- D, B, A, C
- A, C, B, D
- C, A, D, B
- C, A, B, D
Answer
(4) C, A, B, D
Solution
The outermost layer around the ovum is the corona radiata (C), inside which lies the zona pellucida (A).
Between the zona pellucida and the ovum lies the perivitelline space (B), and innermost is the plasma membrane of the ovum (D).
Order: C, A, B, D.
Answer: (4)