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A Matter of Taste
Sex and Associated Traits
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AAbb American Indians animals antigens appear artificial selection average basis birth blood groups boys breeds brothers and sisters brown characteristics child Chinese color-blind compared correlation dark degree democracy dermatoglyphics determination disease dominant gene embryo environmental evidence eyes factors families feebleminded females Figure finger prints fraternal twins frequencies genetic genotype germ cells germ plasm girls hair hand handedness hereditary heredity heredity and environment heterozygous homozygous human identical twins idio-savants individual inherited intelligence interdigital area Jews kind of genes learning capacity left-handed loops males mating mulatto negroes non-taster North American whites occur pair of identical pairs of genes palm parents patterns percentages pigment population quintuplets race racial differences racial variations recessive genes right-handed sex-linked sex-linked genes Shilluk shown similar special abilities sperms stature Steggerda sterilization superior taste reaction tasters tests tion twins reared twins show types of twins whorls zygote