Population

A group of interbreeding individuals and their offspring

Gene Pool

The set of all copies of all alleles in a population that could potentially be contributed by the members of one generation to the members of the next generation

Genetic Drift

Change in the frequencies of alleles in a population resulting from sampling error in drawing gametes from the gene pool to make zygotes and from chance variation in the survival and/or reproductive success of individuals; results in nonadaptive evolution

Hardy Weinberg Conclusion 1

The allele frequencies in a population will not change, generation after generation.

Hardy Weinberg Conclusion 2

If the allele frequencies in a population are given by p and q, the genotype frequencies will be given by p2, 2pq, and q2

Hardy Weinberg Principle Assumptions

1. There is no selection 2. There is no mutation 3. There is no migration 4. There are no chance events 5. Individuals choose their mates at random

Hardy-Weinberg Equilibrium

A situation in which allele and genotype frequencies in an ideal population do not change from one generation to the next, because the population experiences no selection, no mutation, no migration, no genetic drift, and random mating