Gametogenesis is the creation of gametes by meiotic division of gametocytes into various gametes. The male form of gametogenesis is called spermatogenesis, while the female form is called oogenesis. Spermatogenesis produces four cells per division, but oogenesis produces one cell. Gametes (in Greek: γαμέτες) —also known as sex cells, or spores—are the specialized germ cells that come together during fertilization (conception) in organisms that reproduce sexually. ... For the article on the figure of speech, see meiosis (figure of speech). ... A gametocyte is a eukaryotic germ cell that divides by mitosis into other gametocytes or by meiosis into gametes. ... Spermatogenesis refers to the creation, or genesis, of spermatozoa, which occurs in the male gonads. ... Oogenesis refers to the process of formation, development, and maturation of a healthy oocyte (egg) in the ovary. ...