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Epistasis can produce a ratio of 12:3:1.

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Epistasis can produce a ratio of 12:3:1.

(a) True

(b) False

This question was posed to me in an online interview.

I want to ask this question from Epistasis topic in portion Extension and Deviation from Mendelian Genetic Principles of Cytogenetics

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The correct choice is (a) True

The explanation is: This is the phenotypic ratio observed in case of dominant epistasis. Then the presence of a dominant allele in one locus will produce the same effect irrespective of the allele at the other locus.

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