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单词 additive gene action
释义 additive gene action
[¦ad·ǝ·div ¦jēn ´ak·shǝn]
GENETICS
1. A form of allelic interaction in which dominance is absent, resulting in a heterozygote that is intermediate in phenotype between homozygotes for the alternative alleles.
2. The cumulative contribution made by all loci in a group of nonallelic genes to a polygenic trait.
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