ANTH 1000 - Ch. 12 Flashcards
race
in biology, a subspecies or a population of a species differing geographically, morphologically, or genetically from other populations of the same species; not applicable to people because the division of humans into discrete types does not represent the true nature of human biological variation. In some societies, it is an important social category
racism
a doctrine of superiority by which one group justifies the dehumanization of others based on their distinctive physical characteristics
polymorphic
describing species with alternative forms (alleles) of particular genes
polytypic
describing the expression of genetic variants in different frequencies in different populations of a species
epicanthic eye fold
a fold of skin at the corner of the eye that covers the true corner of the eye; common in Asiatic populations
lactose
a sugar that is the primary constituent of fresh milk
lactase
an enzyme in the small intestine that enables humans to assimilate lactose
thrifty genotype
human genotype that permits efficient storage of fat to draw on in time of food shortage and conservation of glucose and nitrogen
melanin
the chemical responsible for dark skin pigmentation that helps protect against damage from ultraviolet radiation