Oogenesis, ovogenesis or oögenesis ( /ˌoʊ.əˈdʒɛnɨsɪs/) is the creation of an ovum (egg cell). It is the female form of gametogenesis; the male equivalent is spermatogenesis. It involves the development of the various stages of the immature ovum.
Read more about Oogenesis: Oogenesis in Mammals, Human Oogenesis, Oogenesis in Non-mammals