When does the zona pellucida develop?
A) when follicles are in the early antral stage
B) when follicles are in the preantral stage
C) after fertilization
D) when follicles are in the late antral stage
E) when follicles are in the primordial phase

Question

Quizplus · Accepted Answer

The zona pellucida develops during the preantral stage of follicle development, as the oocyte grows and the surrounding granulosa cells proliferate.

When Does the Zona Pellucida Develop