Dominance: Difference between revisions
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A genetic term | A genetic term used when describing an [[Allele|allele]] whose [[Phenotype|phenotype]] is expressed in [[Organism|organisms]] both [[Homozygous|homozygous]] for that allele and [[Heterozygous|heterozygous]] (it masks another allele - a [[Recessive|recessive]] allele). | ||
There are three types of dominance: | |||
Complete Dominance - recessive phenotypes are only present in homozygous recessive organisms | |||
Incomplete Dominance - heterozygotes resemble neither the dominant nor the recessive phenotype | |||
Co-dominance - heterozygotes are a mixture of both the dominant and recessive phenotypes | |||
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Revision as of 16:11, 17 November 2011
A genetic term used when describing an allele whose phenotype is expressed in organisms both homozygous for that allele and heterozygous (it masks another allele - a recessive allele).
There are three types of dominance:
Complete Dominance - recessive phenotypes are only present in homozygous recessive organisms
Incomplete Dominance - heterozygotes resemble neither the dominant nor the recessive phenotype
Co-dominance - heterozygotes are a mixture of both the dominant and recessive phenotypes