Which of the following statements correctly defines a dominant allele?

Practice question

Question

Which of the following statements correctly defines a dominant allele?

Options

Choose one · Correct answer highlighted

An allele that is expressed only in the homozygous state An allele that is always recessive An allele that is expressed even in the heterozygous state Correct An allele that does not contribute to the phenotype

Explanation

A dominant allele is expressed in both homozygous (AA) and heterozygous (Aa) conditions. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

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