Egg Cell Formation and Meiosis in Oogenesis

Oogenesis is the process of egg cell formation in the ovaries. These female gametes are essential for female fertility. The sequence starts during fetal development, when diploid oogonia in the developing ovaries divide by mitosis to form primary oocytes.

By birth, the primary oocytes have entere...

Oogenesis involves the formation of egg cells, or female gametes, in the ovaries.

In fetal development, diploid oogonia in the ovaries divides mitotically to become primary oocytes.

These primary oocytes start meiosis I but are arrested in late prophase I until puberty.

Each primary oocyte is enveloped by a layer of pre-gran...