gamete

agamous Not involving the fusion of male and female gametes in reproduction.

Antherozoid (spermatozoid) The male gamete of algae, some gymnosperms, and the non-seed-bearing plants.

Gametangium (pl. gametangia) A cell or organ in which sexual cells (gametes) are produced.

Cryptogam In early classifications, any plant that reproduces by spores or gametes rather than by seeds.

Macrospore metrocyte of Pinus sylvestris var. mongolica developed to female gametophyte containing female gamete-egg by a series of changes.

Individuals crossing exclusively within the same population produce more progeny than those crossing in both directions and thereby use up some of their gametes for the production of inviable hybrids.

Undulipodium (pl. undulipodia) A whiplike organelle that protrudes from a eukaryotic cell and is used chiefly for locomotion (e.g. motile gametes) or feeding (e.g. ciliate protoctists).

cystozygote General term for a zygote that has encysted immediately after fusion of gametes in syngamy; such a zygote is found in various groups of flagellates and sporozoa.