Anthropology Ch. 3

9 cards·by emarch

Gene Pool

All the genes in the bodies of all members of a given species.

Gene Frequency

Frequency of particular genes in a gene pool.

population genetics

uses statistical analysis to study short term evolutionary change in large populations.

Mutation

creation of a new allele for a gene when portion of DNA molecule is suddenly altered.

Natural Selection

Variant individuals best suited to environment to survive and reproduce more successfully.(incr. or decre. variation depends))

Gene Flow

exchange of genes when a population experiences sudden expansion due to in migration.

Genetic Drift

changes in gene frequencies due to sudden reduction in population size from disaster disease or out migration.

Plasticity

physiological flexibility, body responds to environmental stress.

Acclimatization

change in the way the body functions in response to physical stress.