A) both of the alleles in a heterozygote are expressed phenotypically in an individual.
B) expression of two different alleles alternates from one generation to the next.
C) a heterozygote expresses an intermediate phenotype.
D) offspring exhibit several different phenotypic expressions of a single trait.
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Home » Biology » Codominance occurs when: A) both of the alleles in a heterozygote are expressed phenotypically in an individual. B) expression of two different alleles alternates from one generation to the next. C) a heterozygote expresses an intermediate phenotype.