"Asexually" Quotes from Famous Books
... varieties thus produced can be propagated for a length of time by buds, and occasionally by seed. Nevertheless, it must be admitted that beings produced sexually are much more liable to vary than those produced asexually; and of this fact a partial explanation will hereafter be attempted. The variability in both cases is determined by the same general causes, and is governed by the same laws. Hence new varieties arising ... — The Variation of Animals and Plants Under Domestication, Volume II (of 2) • Charles Darwin |