Class 12 NEET Biology Human Reproduction Questions Part 2

Concept:The ovum is surrounded by a specific membrane at the time of ovulation.Explanation:During ovulation, the Graafian follicle ruptures to release the secondary oocyte. This oocyte is enclosed by a thick, transparent outer membrane called the zona pellucida. The zona pellucida protects the oocyte and plays a role in fertilization. The other options are incorrect: chorion is a fetal membrane, endometrium lines the uterus, and zona radiata is a layer formed after fertilization in some species.Answer:D. zona pellucida