During fertilization, sperm bind to specific receptor sites on the surface of what structure
A)zona pellucida
B)corona radiata
C)plasma membrane of the ovum
D)polar body

Question

Quizplus · Accepted Answer

Sperm bind to specific receptor sites on the zona pellucida, a glycoprotein layer surrounding the ovum. The corona radiata is a layer of cells surrounding the ovum, but sperm do not bind to receptor sites on these cells. The plasma membrane of the ovum also does not have receptor sites for sperm binding. Polar bodies are small cells that are produced during oogenesis and are not involved in fertilization.

During Fertilization, Sperm Bind to Specific Receptor Sites on the Surface