What cause change of allele frequency in a gene pool
841 views · Published 26 August 2014 · 6:48 · Indexed 27 October 2026
Channel: Nikolay's Genetics Lessons · 2014 · Education
Microevolution and population genetics Microevolution, or evolution on a small scale, is defined as a change in the frequency of gene variants, alleles, in a population over generations. The field of biology that studies allele frequencies in populations and how they change over time is called population genetics. Microevolution is sometimes contrasted with macroevolution, evolution that involves large changes, such as formation of new groups or species, and happens over long time periods. However, most biologists view microevolution and macroevolution as the same process happening on different timescales. Microevolution adds up gradually, over long periods of time to produce macroevolutionary changes. A population is a group of organisms of the same species that are found in the same area and can interbreed. A population is the smallest unit that can evolve—in other words, an individual can’t evolve. An allele is a version of a gene, a heritable unit that controls a particular feature of an organism.
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