incomplete dominance


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Related to incomplete dominance: Multiple alleles

incomplete dominance

n.
A heterozygous condition in which both alleles at a gene locus are partially expressed, often producing an intermediate phenotype. Also called partial dominance.

incomplete dominance

Failure of one or other of two ALLELES to exert a dominant effect with the result that the PHENOTYPE has a form somewhere in between those of the two phenotypes that would be produced were either gene homozygous.

incomplete dominance

a pattern of inheritance in which a cross between two phenotypically different parents produces an offspring different from either parent but containing partial features of both. The classic example is in flower colour where, for example, crossing white and red snapdragons produces a pink offspring. Compare CODOMINANCE. See also DOMINANCE (1).

dominance

1. the supremacy, or superior manifestation, in a specific situation of one of two or more competitive or mutually antagonistic factors or animals.
2. in genetics, alleles which fully express their phenotype when present in the heterozygous state.

dominance aggression
behavior by an animal that asserts its dominance over another or a human, such as competing for food, resisting control measures, or assuming dominant postures.
dominance deviation
a deviation from gene additive action due to dominance.
incomplete dominance
when a heterozygote displays the effects of two alleles at the same location; the alleles are said to be incompletely dominant or co-dominant.
location dependent dominance
behavior in which an animal is dominant when in its home territory, but it becomes subordinate outside that territory.
dominance relationship
probability of relatives having the same genotype.
References in periodicals archive ?
Combined genotypes and phenotypes for incomplete dominance model.
The overdominance effects on the traits seed yield [21,2], spike weight [18], and 100-seed weight [3], as well as incomplete dominance effects on biologic yield [17], peduncle length [17], spike length [18] have been reported previously.
Even considering the effects of incomplete dominance, epistasis, and pleiotropy as modifiers of genetic control, the possible phenotypes change only in degree or number of discrete possibilities.
These results are also consistent with incomplete dominance and suggest that six-legs is the heterozygote of two-legs and four-legs.

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