PCB 4674 Chapter Notes -Fecundity, Genetic Drift, Familial Adenomatous Polyposis
22 Feb 2013
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Document Summary
Population genetics: relationship of genotype frequency in an offspring population and how it is related to the genotype frequencies in a parental population. Biological evolution occurs when genotype frequencies change over time. A state where it does not change in the absence of outside forces or processes acting on it. Genotype frequencies do not change from generation to generation. Stable equilibrium: marble at the bottom of a rounded cup. Unstable equilibrium: marble balanced on top of a hill. Neutral equilibrium: marble at rest on a tabletop. 7. 2 the hardy-weinberg model: a null model for population genetics. Hardy-weinberg model: provides null model to compare to. It tells what happens to genotype frequencies when natural selection and other important drivers of evolutionary change re not operating. If no evolutionary processes are operating, a locus that is initially not at hard-weinberg equilibrium will reach hardy-weinberg equilibrium in a single generation.
