genetic homeostasis


Also found in: Encyclopedia.

Ler·ner ho·me·o·sta·sis

(ler'nĕr),
the restorative mechanisms that tend to correct perturbations in the genetic composition of a population.
Synonym(s): genetic homeostasis

genetic homeostasis

the maintenance of genetic variability within a population through adaptation to varied or changing environments and conditions of life as a result of shifts or resistance to shifts in allelic frequencies.

genetic homeostasis

the property possessed by a population for resisting sudden change and maintaining a steady genetic composition.

Lerner,

I.M., U.S. population geneticist, 1910-1967.
Lerner homeostasis - the restorative mechanisms that tend to correct perturbations in the genetic composition of a population. Synonym(s): genetic homeostasis
References in periodicals archive ?
For example, overdominance, resulting in a mechanism for genetic homeostasis, may make important contributions to phenotypic variability.
The presence of genetic homeostasis of the form assumed in our model may maintain stable genetic polymorphism.
Except for Wright's (1941) paper on chromosomes cited above, theoreticians had not addressed speciation at all before 1966 (Maynard Smith 1966); there existed a great body of evidence on genetic homeostasis and coadaptation for which theoreticians had provided no interpretive guide, but which was conducive to the theory; and no simpler hypothesis seemed, to Mayr, to explain the puzzling observational evidence that peripheral populations often diverge more rapidly and dramatically than widespread populous species (1988, p.