1) Development 2) Growing 3) Growth 4) Maturation 5) Ontogenesis 6) Ontogeny 7) The development of gametes 1) Oogenesis 2) Spermatogenesis 
Gametogenesis is a biological process by which diploid or haploid precursor cells undergo cell division and differentiation to form mature haploid gametes. Depending on the biological life cycle of the organism, gametogenesis occurs by meiotic division of diploid gametocytes into various gametes, or by mitotic division of haploid gametogenous cell...
formation of gametes
The development of gametes. 
<biology> Process leading to the production of gametes. ... (18 Nov 1997) ... 
(gә-me″to-jen´ә-sis) the development of the male and female sex cells (gametes). adj., gametogen´ic, adj. .
Process leading to the production of gametes.
Type: Term Pronunciation: gam′ĕ-tō-jen′ĕ-sis Definitions: 1. The process of formation and development of gametes.
Gametogenesis: The development and production of the male and female germ cells required to form a new individual. The male and female germ cells are called gametes. The gametes in human males are produced by the testes, two globe-shaped reproductive organs just below the penis. Male gametes are what most people refer to as sperm. Gametes in human ...
[n] - the development and maturation of sex cells through meiosis