codominance


Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to codominance: Multiple alleles, incomplete dominance

codominance

/co·dom·i·nance/ (ko-dom´ĭ-nins) the full expression in a heterozygote of both alleles of a pair with neither influenced by the other, as in a person with blood group AB.codom´inant

codominance

(kō-dŏm′ə-nəns)
n.
A heterozygous condition in which both alleles at a gene locus are fully expressed in the phenotype.

codominance

[kōdom′ənənts]
Etymology: L, cum, together with, dominare, to rule
the equal degree of dominance of two alleles or traits fully expressed in a phenotype, as when a person inherits both the IA and IB genes of the ABO blood group and has type AB blood. codominant, adj.

codominance

the relationship between two different ALLELES of a gene in the HETEROZYGOTE, producing a PHENOTYPE containing both parental forms of the character. For example, allele A of the ABO blood group is codominant to allele B, so that an individual with both alleles (A/B) produces both A and B antigens. Compare INCOMPLETE DOMINANCE. See DOMINANCE (1).
References in periodicals archive ?
This pattern of codominance may reflect different advantages of each species under different environmental conditions.
For example, Themeda triandra, a highly palatable East African savanna grass, suffers [approximately equal to]80% mortality from ungulate grazers when not associated with other, less palatable grass species; however, as codominance with unpalatable species increases, mortality of Themeda rapidly decreases (McNaughton, 1978).
1996), which benefit from their high polymorphism, heterozygosity, codominance, and wide transportability across different mapping populations.
They are excellent markers for genome mapping because of their codominance and high polymorphism.