A key response in an egg to a signal from an entering sperm is
A) the activation of nitric oxide.
B) differential gene expression.
C) the opening of ion channels.
D) smooth muscle contraction.
E) enzyme inhibition by phosphorylation.

Question

Quizplus · Accepted Answer

The opening of ion channels is a key response in an egg to a signal from an entering sperm, leading to changes in the egg's internal environment that facilitate fertilization and prevent polyspermy.

A Key Response in an Egg to a Signal from an Entering