An
oocyte (, ),
oöcyte,
ovocyte, or rarely
ocyte, is a female
gametocyte or
germ cell involved in
reproduction. In other words, it is an
immature ovum, or
egg cell. An oocyte is produced in the ovary during
female gametogenesis. The female germ cells produce a primordial germ cell (PGC), which then undergoes
mitosis, forming
oogonia. During oogenesis, the oogonia become primary oocytes.