Deviations from the Hardy-Weinberg Equilibrium
Hardy-Weinberg calculations identify the allelic and genotypic frequencies expected from generation to generation, when a population is in Hardy-Weinberg equilibrium. For a population to reach and maintain this equilibrium, it must meet criteria (e.g. random mating patterns, no mutation, no selection) that are essentially unattainable outside of a laboratory setting. Thus, evolution occurs when natural populations deviate from Hardy-Weinberg equilibrium, causing shifts from the expected allelic and genotypic distributions. The major mechanisms that drive these shifts are selection, mutation, migration, genetic drift, and non-random mating.
Keywords: allele | artificial selection | equilibrium | genetic drift | Hardy-Weinberg | migration | modern evolutionary synthesis | mutation | natural selection | non-random mating | selection | sexual selection | theory | variation | volutionary biology
- Campbell, N.E. & Reece, J.B. (2002). Biology (6th ed.). San Francisco: Benjamin Cummings.
Your slide tray is being processed.