In the first step in oogenesis
A)a primary oocyte divides to form a secondary oocyte and a first polar body.
B)an oogonium accumulates cytoplasm and DNA replicates.
C)a stem cell divides to yield an oogonium and a spermatogonium.
D)an oocyte divides to yield two polar bodies.

Question

Quizplus · Accepted Answer

The first step in oogenesis is the development of an oogonium, which accumulates cytoplasm and undergoes DNA replication to become a primary oocyte. This is known as the process of oocytogenesis. However, the primary oocyte remains arrested in prophase I until puberty in most animals. Therefore, the formation of a secondary oocyte and polar body occurs after the primary oocyte is ovulated and completes meiosis I.

In the First Step in Oogenesis