What term describes the phenomenon where one gene or multiple genes inhibit the expression of other non-allelic genes?

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

Epistasis occurs when one gene or a group of genes suppresses the effect of other genes that are not alleles of the first. This interaction differs from dominance or co-dominance, which involve allelic gene interactions.

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