First slide
Polygenic Inheritance
Question

Inheritance of skin color in human beings is an example for one of the following patterns of inheritance.

Easy
Solution

Skin color in humans is regulated by three different genes named as A, B and C. Each gene is diallelic and total number of alleles that regulate the melanin synthesis in man are six (Aa Bb and Cc). Dominant forms form melanin and recessive forms do not form melanin. 

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