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Biology  /  Bio 1041  ·  Atom · ~20 seconds

Codominance

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Codominance expresses both alleles fully and simultaneously in a heterozygote, rather than blending them into one intermediate trait.

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Roan cattle coat color shows both red and white hairs together in a roan heterozygote, neither hair color masked nor blended.

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Codominance shows both traits fully at once; incomplete dominance shows one merged, intermediate trait instead.