During the production of secondary oocytes by oogenesis, meiosis II is completed
A)prior to birth.
B)at puberty.
C)just before ovulation.
D)just after ovulation.
E)just after fertilization.

Question

Quizplus · Accepted Answer

Meiosis II in oogenesis is completed just after fertilization. Initially, the secondary oocyte halts at metaphase II and only proceeds to complete meiosis II if fertilization occurs, leading to the formation of a mature ovum and a second polar body.

During the Production of Secondary Oocytes by Oogenesis, Meiosis II