Q.

A polygenic trait is controlled by 3 genes A, B and C. In a cross AaBbCc × AaBbCc, then what will be the skin colour of the individual having genotype AABBCC

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a

Lightest colour                 

b

Faily dark colour

c

Intermediate colour

d

Darkest colour                  

answer is C.

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Detailed Solution

The individuals having genotype AABBCC produces highest quantity of melanin pigment  as a result their skin color is the darkest.(Negro).

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