Question

with the help of a suitable example explain polygenic inheritance

Answer 1

In an example using two parents, heterozygous for each of the melanin-producing genes (AaBbCc x AaBbCc), it is possible to see how the additive effects and combinations of alleles results in all the possible genotypes.

Human skin color chart

In this simplified example, there are 64 possible allele combinations, which result in the production of 7 different colored skin tone