ANTH 2700 Chapter 4: Population Genetics
Document Summary
The individual is not the unit of evolution. Reproductive population: a group of organisms capable of successful reproduction; unit of evolution. Reproductive isolating mechanisms: a mechanism that prevents reproduction from occurring between two populations. A successful reproductive rate is one that maintains a balance between population size and the potentials and limitations of the environment. Species: the largest natural population whose members are able to reproduce successfully among themselves but not with members of other species. Gene pool: the sum of all alleles carried by the members of a population. Evolution: change in the frequencies of alleles within a gene pool of a population over time. Genetic equilibrium: a hypothetical state in which a population is not evolving because the allele frequencies remain constant over time. Frequency of each genotype within the population remains unchanged. Frequency of a allele equals 50% and frequency of a allele equals 50% Frequency of aa genotype equals 1/2 times 1/2 equals 1/4.
