Gene pool

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For the guitarist named Gene Pool, see Greg Flesch.

In population genetics, a gene pool is the complete set of unique alleles in a species or population. A large gene pool indicates extensive genetic diversity, which is associated with robust populations that can survive bouts of intense selection. Meanwhile, low genetic diversity (see inbreeding and population bottlenecks) can cause reduced biological fitness and an increased chance of extinction.

When many alleles exist for a given gene or locus, a population is said to be polymorphic with respect to that gene or locus. When no variation exists, it is labelled monomorphic.

See also

• Biodiversity
• Conservation biology
• Founder effect
• Genetic drift
• Population genetics
• Small population size

v • d • e Subfields of genetics
Main subjects	Classical genetics · Conservation genetics · Ecological genetics · Immunogenetics · Molecular genetics · Population genetics · Quantitative genetics
Related topics	Geneticist · Genomics · Medical genetics · Molecular evolution · Reverse genetics

v • d • e Basic topics in evolutionary biology
Evidence of evolution
Processes of evolution	adaptation · macroevolution · microevolution · speciation
Population genetic mechanisms	natural selection · genetic drift · gene flow · mutation
Evolutionary developmental biology (Evo-devo) concepts	phenotypic plasticity · canalisation · modularity
Modes of evolution	anagenesis · catagenesis · cladogenesis
History	History of evolutionary thought · Charles Darwin · The Origin of Species · modern evolutionary synthesis · Evolutionary history of life
Other subfields	ecological genetics · human evolution · molecular evolution · phylogenetics · systematics
List of evolutionary biology topics · Timeline of evolution

v • d • e Topics in population genetics
Key concepts	Hardy-Weinberg law • genetic linkage • linkage disequilibrium • Fisher's fundamental theorem • neutral theory
Selection	natural • sexual • artificial • ecological
Effects of selection on genomic variation	genetic hitchhiking • background selection
Genetic drift	small population size • population bottleneck • founder effect • coalescence
Founders	R.A. Fisher • J. B. S. Haldane • Sewall Wright
Related topics	evolution • microevolution • evolutionary game theory • fitness landscape • genetic genealogy
List of evolutionary biology topics

da:Genpulje de:Genpoolfr:Ressource génétique it:Pool genico ja:遺伝子プール nn:Genforrådsr:Генски фонд fi:Geenipooli sv:Genpool

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Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .