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a. How are Mendelian inheritance, polygenic inheritance and pleiotropy different from each other ? b. Explain polygenic inheritance pattern with the help of a suitable example. |
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Answer» (a)
(b) Human height or skin colour are examples of polygenic inheritance. Height trait is controlled by at least three gene pairs. Additive effect allele contributes to the phenotypic expression of the trait. The dominant alleles more are, more pronounced is the phenotypic expression or more in other word. The recessive alleles less pronounced is the phenotypic expression. |
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