資料來源 : pyDict
世代交替
資料來源 : Webster's Revised Unabridged Dictionary (1913)
Metagenesis \Met`a*gen"e*sis\, n. [Pref. meta- + genesis.]
1. (Biol.) The change of form which one animal species
undergoes in a series of successively produced
individuals, extending from the one developed from the
ovum to the final perfected individual. Hence, metagenesis
involves the production of sexual individuals by nonsexual
means, either directly or through intervening sexless
generations. Opposed to {monogenesis}. See {Alternate
generation}, under {Generation}.
2. (Biol.) Alternation of sexual and asexual or gemmiparous
generations; -- in distinction from heterogamy.
資料來源 : WordNet®
metagenesis
n : alternation of sexual and asexual generations [syn: {digenesis}]