gamete vs reproductive cell

gamete and reproductive cell both are nouns.

Word	Noun	Adjective	Verb	Adverb
gamete	Yes	No	No	No
reproductive cell	Yes	No	No	No

As nouns, reproductive cell is a hypernym of gamete; that is, reproductive cell is a word with a broader meaning than gamete:

gamete: a mature sexual reproductive cell having a single set of unpaired chromosomes
reproductive cell: a spermatozoon or an ovum; a cell responsible for transmitting DNA to the next generation

Other hypernyms of gamete include germ cell, sex cell.

gamete (noun)	reproductive cell (noun)
a mature sexual reproductive cell having a single set of unpaired chromosomes	a spermatozoon or an ovum; a cell responsible for transmitting DNA to the next generation