A chemical change in which structure prevents polyspermy fertilization?
A) sperm
B) acrosome
C) ovaries
D) zona pellucida
E) corpus luteum

Question

Quizplus · Accepted Answer

The zona pellucida is a glycoprotein layer surrounding the oocyte. During fertilization, the sperm must penetrate this layer to reach the oocyte. Once one sperm penetrates the zona pellucida and fertilizes the egg, a chemical change occurs that prevents any other sperm from entering. This is known as the zona reaction and is important to prevent polyspermy, which can lead to genetic abnormalities in the developing embryo.

A Chemical Change in Which Structure Prevents Polyspermy Fertilization