NEET 2026 (Phase 1) · BiologyPrevious Year Question
Arrange the following cell layers/structures around the female gamete, from outer to inner side: A. Zona pellucida B. Perivitelline space C. Corona radiata D. Plasma membrane of ovum Choose the correct answer from the options given below: (NEET 2026)
- A.D, B, A, C
- B.C, A, D, B
- C.C, A, B, D✓
- D.A, C, B, D
Correct Answer
(C) C, A, B, D
Solution & Explanation
Answer: (C) C, A, B, D Solution: From outermost to innermost around the secondary oocyte/ovum: the corona radiata (granulosa cells) lies outside, then the zona pellucida, then the perivitelline space, and finally the plasma membrane of the ovum. So the order is C (corona radiata), A (zona pellucida), B (perivitelline space), D (plasma membrane), i.e. option C. NCERT Reference: Ch 2, p.33, line 13 — "membrane called zona pellucida"
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