A heterozygous organism for a trait will display which phenotype if the trait shows complete dominance?

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Multiple Choice

A heterozygous organism for a trait will display which phenotype if the trait shows complete dominance?

Explanation:
Complete dominance means the dominant allele masks the recessive one, so a heterozygous genotype shows the dominant phenotype. In a Aa individual, the dominant trait is expressed, not the recessive. The recessive trait only appears when both alleles are recessive (aa). A blended intermediate appearance would occur with incomplete dominance, which isn’t the case here. So the observable trait is the dominant form.

Complete dominance means the dominant allele masks the recessive one, so a heterozygous genotype shows the dominant phenotype. In a Aa individual, the dominant trait is expressed, not the recessive. The recessive trait only appears when both alleles are recessive (aa). A blended intermediate appearance would occur with incomplete dominance, which isn’t the case here. So the observable trait is the dominant form.

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