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Epistasis is the interaction between two genes producing a new phenotype.

(a) True

(b) False

The question was posed to me in semester exam.

This is a very interesting question from Epistasis topic in portion Extension and Deviation from Mendelian Genetic Principles of Cytogenetics

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The correct answer is (b) False

The best I can explain: In case of epistasis there is suppression of expression of one phenotype but there is no production of new phenotype. This is how it differs from gene interaction.

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