At the time of fertilization, the maturation of the human oogonium has resulted in ________.
A) one secondary oocyte
B) two primary oocytes
C) four secondary oocytes
D) four primary oocytes
E) four zygotes

Question

Quizplus · Accepted Answer

At the time of fertilization, the human oogonium has matured into a primary oocyte, which has undergone meiosis I resulting in the formation of one secondary oocyte and a polar body. The secondary oocyte is then ovulated and only completes meiosis II upon fertilization. Therefore, there is only one secondary oocyte present at the time of fertilization. Choices B, C, D, and E are incorrect.

At the Time of Fertilization, the Maturation of the Human