Question

What are the features of polygenic inheritance?

Answer 1

Polygenic inheritance:

1. Multiple alleles present on the same locus interact to produce the wide range of phenotypes that are possible for polygenic traits.
2. In a population, polygenic traits have a bell-shaped distribution, with the majority of people acquiring different allele combinations and lying in the middle of the curve for a given trait.
3. As opposed to Mendelian traits, polygenic traits show incomplete dominance instead of complete dominance.
4. It may also be influenced by environmental factors.
5. Skin color, eye color, hair color, body type, height, and weight are a few examples of polygenic traits.