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On how many loci the genes responsible for skin colour are present?(a) Two(b) Three(c) Four(d) FiveThe question was asked by my school teacher while I was bunking the class.Asked question is from Polygenic Inheritance topic in section Principles of Inheritance and Variation of Biology – Class 12

Answer» RIGHT answer is (b) Three

Best explanation: The three pair of genes which DETERMINE the skin colour in humans are PRESENT at three different loci and each dominant allele of that gene is RESPONSIBLE for the amount of melanin pigment in the skin.


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