The ability of a cell to express multiple self-surface protein markers, each coded for by an allele variant from the same gene and carrying out its own independent function, this is an example of Codominance.
What is codominance?
In terms of genetics, codominance is a sort of inheritance in which two distinct expressions (alleles) of the same gene result in distinct features in a person.
What causes codominance?
- We observe codominance when both the traits are exhibit dominance.
- Codominance is demonstrated by the human ABO blood group system.
- Codominant alleles determine the blood type of an individual.
- The IA, IB, and I alleles are three distinct types.
- The I allele is recessive, while the IA and IB alleles are codominant.
- Blood group phenotypes that may exist in humans include types A, B, AB, and O.
Examples for codominance:
- Animals that exhibit codominance include roan cattle and speckled chickens, which have alleles that express both red and white hair as well as both black and white feathers.
- Plants also exhibit codominance.
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