gametogenesis vs ontogeny

gametogenesis and ontogeny both are nouns.

Word	Noun	Adjective	Verb	Adverb
gametogenesis	Yes	No	No	No
ontogeny	Yes	No	No	No

As nouns, ontogeny is a hypernym of gametogenesis; that is, ontogeny is a word with a broader meaning than gametogenesis:

gametogenesis: the development and maturation of sex cells through meiosis
ontogeny: (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level

Other hypernyms of gametogenesis include development, growing, growth, maturation, ontogenesis.

gametogenesis (noun)	ontogeny (noun)
the development and maturation of sex cells through meiosis	(biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level