Contact of a Sperm with Signal Molecules in the Coat

Question

Contact of a sperm with signal molecules in the coat of an egg causes the sperm to undergo
A) mitosis.
B) depolarization.
C) apoptosis.
D) vitellogenesis.
E) the acrosomal reaction.

Accepted Answer

Contact of a sperm with signal molecules in the coat of an egg causes the acrosomal reaction in the sperm, which involves the release of enzymes to aid in penetrating the egg's protective layers. Mitosis, depolarization, apoptosis, and vitellogenesis are not directly related to sperm-egg interaction.