Which of the following correctly describes codominance?

Practice question

Question

Which of the following correctly describes codominance?

Options

Choose one · Correct answer highlighted

One allele is dominant over the other. Both alleles contribute equally to the phenotype. Correct A heterozygote shows a blended phenotype. Only one allele is expressed at a time.

Explanation

In codominance, both alleles are fully expressed, as seen in the AB blood group. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

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