The second type of hybrid consists of crosses between populations, breeds or cultivars within a single species. This second meaning is often used in plant and animal breeding. In plant and animal breeding, hybrids are commonly produced and selected because they have desirable characteristics not found or inconsistently present in the parent individuals or populations. This rearranging of the genetic material between populations or races is often called hybridization.Not that you would want to describe human ethic groups as "breed" or "cultivars", but there is a relationship to ancestral geography and genetics in humans.
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posted by Joe Beese at 9:11 PM on December 2, 2008