traditionally does not belong to oogenesis proper, but, instead, to the common process of gametogenesis, which, in the human female, begins with the processes of folliculogenesis, oocytogenesis, and ootidogenesis. Oogonia enter meiosis during embryonic development, becoming oocytes. Meiosis begins with DNA replication and meiotic crossing over. It then stops in early prophase.

Maintenance of meiotic arrest