NEET 2007 Biology question

Inheritance of skin colour in humans is an example of:

(1)codominance
(2)chromosomal aberration
(3)point mutation
(4)polygenic inheritanceCorrect

Answer: (4)

Solution

Human skin colour is controlled by several genes (at least three, A, B and C), each with alleles that add to the pigmentation (additive effect), so the phenotype shows continuous variation from very light to very dark. A trait controlled by many genes whose effects

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Question ID VK-089813