[CHEM-C 106] - Final Exam Guide - Ultimate 110 pages long Study Guide!
29 Mar 2017
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Some key words population as a result of natural selection intermediates and other phenotypic extreme a phenotype in a population determines the fitness of that trait. Balanced polymorphism a type of genetic polymorphism in which two or more alleles persist in a. Bottleneck effect an event that rapidly, randomly, and dramatically decreases the size of a population. Directional selection natural selection selects against one of the phenotypic extremes and favors the. Disruptive selection natural selection selects against the intermediates and favors the phenotypic extremes. Founder effect when a small group of individuals starts a new colony and the new population arises from that original group; as a result, the group exhibits little genetic variation. Frequency dependent selection works to preserve balanced polymorphism; occurs when the frequency of. Genetic drift a change in allele frequencies from one generation to the next. Genetic polymorphism genetic variation among individuals of a population.
