Which of the following correctly describes a recessive allele?

Practice question

Question

Which of the following correctly describes a recessive allele?

Options

Choose one · Correct answer highlighted

It is always expressed in the phenotype. It is expressed only in the heterozygous condition. It is expressed only in the homozygous recessive condition. Correct It is dominant over other alleles.

Explanation

A recessive allele is expressed only in individuals who are homozygous recessive (aa).

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