has part has part has_part contains process develops from germ cell gamete generation gonad Reproductive organ that produces and releases eggs (ovary) or sperm (testis). UBERON:0000991 ZFA:0000413 MESH:D006066 AAO:0000213 VHOG:0000397 BILA:0000123 SCTID:304623008 HAO:0000379 BSA:0000079 gonada EMAPA:17383 NCIT:C12725 FMA:18250 XAO:0003146 TAO:0000413 GAID:368 MA:0002420 WBbt:0005175 BTO:0000534 Wikipedia:Gonad reproductive organ gonad primordium