"Sexual reproduction" Quotes from Famous Books
 ... all. The studies made by contemporary biologists, and notably by the Russian biologist Janicki, on sexual reproduction[65] have explained how this method of reproduction safeguards the homogeneity of the germ plasm in an animal species, and how it unceasingly renews the mutual contacts among the individual members of a race. Janicki writes: "The ...
— The Forerunners • Romain Rolland
... Sexual reproduction is quite a distinct matter. Here, in all these cases, what is required is the detachment of two portions of the parental organisms, which portions we know as the egg and the spermatozoon. In plants it is ...
— Lectures and Essays • T.H. Huxley
... collect on the formation of hybrids between distinct species or varieties, without the intervention of the sexual organs. For if, as I am now convinced, this is possible, it is a most important fact, which will sooner or later change the views held by physiologists with respect to sexual reproduction. A sufficient body of facts will afterwards be adduced, showing that the segregation or separation of the characters of the two parent-forms by bud- variation, as in the case of Cytisus adami, is not an unusual though a striking phenomenon. ...
— The Variation of Animals and Plants under Domestication - Volume I • Charles Darwin |
