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|Noun||1.||assortative mating - mating of individuals having more traits in common than likely in random mating|
mating, pairing, sexual union, union, coupling, conjugation - the act of pairing a male and female for reproductive purposes; "the casual couplings of adolescents"; "the mating of some species occurs only in the spring"
disassortative mating - mating of individuals having traits more dissimilar than likely in random mating