When two contrasting alleles are present and one allele's trait is expressed while the other is hidden, which genetic principle does this illustrate?

Plant Breeding and Genetics MCQs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Plant Breeding and Geneticsagriculture-mcqs › plant-breeding-and-genetics
Published
30 Mar 2019
Last updated
28 May 2026

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Explanation

The Law of dominance states that when two different alleles are paired, one allele can dominate and mask the expression of the other. This explains why only one trait is visible in the organism despite having two alleles.

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