explains traits that are neither dominant nor recessive, resulting in a third phenotype in the offspring that appears to blend the traits from the parents.

In incomplete dominance, neither allele completely masks the other, so a heterozygous offspring shows an intermediate phenotype that appears to blend the parents’ traits. For example, crossing a red-flowered plant with a white-flowered plant may produce pink flowers. Codominance instead shows both traits distinctly, while polygenic inheritance involves multiple genes influencing a trait.

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