has part has part has_part contains process contains process develops_from develops from anatomical entity anatomical entity germ cell gamete generation gonad UBERON:0000991 gonadal The part of the reproductive system that produces and releases eggs (ovary) or sperm (testis).[TAO] SCTID:304623008 gonada EMAPA:17383 NCIT:C12725 FMA:18250 MA:0002420 OpenCyc:Mx4rwQvdiZwpEbGdrcN5Y29ycA BTO:0000534 FBbt:00004858 Reproductive organ that produces and releases eggs (ovary) or sperm (testis). FMA xref is a 'general anatomical term' ZFA:0000413 MESH:D006066 gonads AAO:0000213 VHOG:0000397 BILA:0000123 Anatomical structure which produces gametes as well as certain sex hormones controlled by the pituitary gonadotropins.[AAO] HAO:0000379 BSA:0000079 XAO:0003146 TAO:0000413 GAID:368 uberon UMLS:C0018067 WBbt:0005175 Wikipedia:Gonad Examination of different vertebrate species shows that the adult gonad is remarkably similar in its morphology across different phylogenetic classes. Surprisingly, however, the cellular and molecular programs employed to create similar organs are not evolutionarily conserved.[uncertain][VHOG] reproductive organ gonad primordium