Sentence Examples with the word interbreeding

Von Buch laid stress on geographical isolation as the cause of production of varieties, the different conditions of the environment and the segregated interbreeding gradually producing local races.

Mendel's object was to gain further knowledge as to lsm the result of mixing by cross-fertilization or interbreeding two strains exhibiting diverse characters or structural features.

They are not pure Hamites, and their physical characteristics vary considerably, showing signs of interbreeding with Galla, Afar, Arabs, Abyssinians, Bantus and Negroes.