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|Complete Dominance]] - recessive phenotypes are only present in homozygous recessive [[Organism|organisms]] | |||
#[[Incomplete_dominance|Incomplete Dominance]] - heterozygotes resemble neither the dominant nor the recessive phenotype | |||
#[[Co-dominance|Co-dominance]] - heterozygotes are a mixture of both the [[Dominant|dominant]] and [[Recessive|recessive]] phenotypes<ref>Hartl and Jones. (2009), Genetics: analysis of genes and genomes, 7th Edition, Jones and Bartlet</ref><br> | |||
=== References === | |||
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Latest revision as of 06:08, 25 November 2014
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[1]
References
- ↑ Hartl and Jones. (2009), Genetics: analysis of genes and genomes, 7th Edition, Jones and Bartlet