Genetic variation

Evolutionary biology
Part of a series on
Darwin's finches by John Gould
Index Introduction Main Outline Glossary Evidence History
Processes and outcomes Population genetics Variation Diversity Mutation Natural selection Adaptation Polymorphism Genetic drift Gene flow Speciation Adaptive radiation Co-operation Coevolution Coextinction Contingency Divergence Convergence Parallel evolution Extinction
Natural history Origin of life Common descent History of life Timeline of evolution Human evolution Recent human evolution Phylogeny Biodiversity Biogeography Classification Evolutionary taxonomy Cladistics Transitional fossil Extinction event
History of evolutionary theory Overview Renaissance Before Darwin Darwin Origin of Species Before synthesis Modern synthesis Molecular evolution Evo-devo Current research History of speciation History of paleontology (timeline)
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Social implications Eugenics Evolution as fact and theory Dysgenics Social effects Creation–evolution controversy Theistic evolution Objections to evolution Level of support Nature-nurture controversy
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Genetic variation is the difference in DNA among individuals^[1] or the differences between populations among the same species.^[2] The multiple sources of genetic variation include mutation and genetic recombination.^[3] Mutations are the ultimate sources of genetic variation, but other mechanisms, such as genetic drift, contribute to it, as well.^[2]

^ "What is genetic variation?". EMBL-EBI Train online. 2017-06-05. Retrieved 2019-04-03.
^ ^a ^b "Genetic Variation". Genome.gov. Retrieved 2020-09-28.
^ Levinson, Gene (2020). Rethinking evolution: the revolution that's hiding in plain sight. World Scientific. ISBN 9781786347268.
^ Darwin, 1845. Journal of researches into the natural history and geology of the countries visited during the voyage of H.M.S. Beagle round the world, under the Command of Capt. Fitz Roy, R.N. 2d edition.

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Genetic variation

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