What is the mechanism behind pleiotropy?(a) A single gene controls a single character(b) Effect of a gene on metabolic pathways(c) Effect of multiple genes on multiple pathways(d) Effect of multiple alleles on a biochemical pathwayThe question was posed to me in an international level competition.This key question is from Inheritance Principles in division Principles of Inheritance and Variation of Biology – Class 12

What is the mechanism behind pleiotropy?(a) A single gene controls a s

1.	What is the mechanism behind pleiotropy?(a) A single gene controls a single character(b) Effect of a gene on metabolic pathways(c) Effect of multiple genes on multiple pathways(d) Effect of multiple alleles on a biochemical pathwayThe question was posed to me in an international level competition.This key question is from Inheritance Principles in division Principles of Inheritance and Variation of Biology – Class 12
Answer» The correct answer is (b) Effect of a gene on METABOLIC pathways The EXPLANATION is: Pleiotropy is the phenomenon by which a SINGLE gene affects different metabolic pathways and these different metabolic pathways result in different PHENOTYPES.

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