umls-concept:C0017001 | skos:definition | MSH: The process of germ cell development from the primordial GERM CELLS to the mature haploid GAMETES: ova in the female (OOGENESIS) or sperm in the male (SPERMATOGENESIS).,CSP: process of germ cell development from the primordial germ cells to the mature haploid gametes.,NCI: Gametogenesis is the phase of sexual reproduction in which certain cells of a female or male individual (parent) are transformed into specialized reproductive cells (gametes) that will initiate development of a progeny individual (offspring) upon fertilization. | lld:umls |