Continuous variation: Difference between revisions
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Continuous variation is the principle that some phenotypes have a large range of variation rather than discrete phenotypes. Examples of such phenotypes include height. Phenotypes that show continuous variation are said to be polygenic as they are determined by more than one gene. The converse of continuous variation is discontinuous variation, this is where phenotypes are discrete, for example a fly has wings or is wingless - there is no | Continuous variation is the principle that some [[Phenotypes|phenotypes]] have a large range of variation rather than discrete phenotypes. Examples of such [[Phenotypes|phenotypes]] include height. Phenotypes that show continuous variation are said to be [[Polygenic|polygenic]] as they are determined by more than one [[Gene|gene]]. The converse of continuous variation is discontinuous variation, this is where phenotypes are discrete, for example a fly has wings or is wingless - there is no in between.<ref>Griffiths,AJF.(2000).An Introduction to Genetic Analysis 7th Edition. W.H Freeman and Company.</ref><br> | ||
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Latest revision as of 14:45, 18 November 2014
Continuous variation is the principle that some phenotypes have a large range of variation rather than discrete phenotypes. Examples of such phenotypes include height. Phenotypes that show continuous variation are said to be polygenic as they are determined by more than one gene. The converse of continuous variation is discontinuous variation, this is where phenotypes are discrete, for example a fly has wings or is wingless - there is no in between.[1]
References
- ↑ Griffiths,AJF.(2000).An Introduction to Genetic Analysis 7th Edition. W.H Freeman and Company.