LIFESCI 1 Chapter Notes - Chapter 26: Inbreeding Depression, Allele Frequency, Genotype Frequency
Document Summary
The alleles created by mutation may be beneficial or deleterious or have no effect to fitness. Natural selection is not the only agent responsible for evolution and each of the other agents have different consequences for genetic variation and fitness. Modern synthesis: the era when they began to apply mendellian genetics to darwinian. Hardy weinberg principle: a mathematical null hypothesis for the study of evolutionary processes. 26. 1: analyzing changes in allele frequencies: the hardy-weinberg principle. Population: a group of individuals from the same species that live in the same area at the same time and can interbreed and that can vary in the traits they possess. The hw principle makes two claims: allele frequencies: p + q = 1, genotype frequencies : p2 + 2pq + q2 = 1. When alleles are transmitted via meiosis and random combinations of gametes, their frequencies do not change over time. For evolution to occur, some other factor or factors must come into play.
