fixation

1 topic · 1 source

Food Biotechnology

The situation in which only one allele for a given gene/locus is present in a population. This can occur as a result of direct selection where the allele delivers a greater level of fitness; because of indirect selection, where the locus is linked to a gene that is subject to direct selection; or because of genetic drift.

UN Food and Agriculture Organization — Glossary of Biotechnology for Food and Agriculture