- Differential and non-random reproduction of different genotypes, operating to alter the gene frequencies within a population.
Definition from: MeSH via Unified Medical Language System at the National Library of Medicine
- The process of determining the relative share allotted individuals of different genotypes in the propagation of a population; the selective effect of a gene can be defined by the probability that carriers of the gene will reproduce.
Definition from: Office of Rare Diseases
at the National Institutes of Health
Related discussion in the Handbook
See also Understanding Medical Terminology.