Allele frequency & the gene pool
- Microevolution is a change in the frequency of gene variants, alleles, in a population, typically occurring over a relatively short time period.
- Population genetics is the field of biology that studies allele frequencies in populations and how they change over time.
- Allele frequency refers to how common an allele is in a population. It is determined by counting how many times the allele appears in the population then dividing by the total number of copies of the gene.
- The gene pool of a population consists of all the copies of all the genes in that population.