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balanced polymorphism |
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balanced polymorphism [′bal·ənst ¦päl·i′mȯr‚fiz·əm] (genetics) Maintenance in a population of two or more alleles in equilibrium at frequencies too high to be explained, particularly for the rarer of them, by mutation; commonly due to the selective advantage of a heterozygote over both homozygotes. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| One indication of a balanced polymorphism is a higher rate of nonsynonymous than synonymous substitution (8). |
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