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biology 16.2 terms

TermDefinition
immigration the movement of an individual or a group to a new community or region
emigraion the movement of an individual or group out of its native area
gene flow the movement of genes into or out of a population due to interbreeding
genetic drift the random change in allele frequency in a population
sexual selection an evolutionary mechanism by which traits that increase the ability of individuals to attract or acquire mates appear with increasing frequency in a population; selection in which a mate is chosen on the basis of a particular trait or traits
stabilizing selection a type of natural selection in which the average form of a trait is favored and becomes more common
disruptive selection a type of natural selection in which two extreme forms of a trait are selected
directional selection a natural selection process in which one genetic variation is selected and that causes a change in the overall genetic composition of the population
Created by: eifertmaddy15
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