Question

What is it called when two separate genes contribute to one phenotype?

Answer 1

Polygenic inheritance:

1. Polygenic inheritance is caused by multiple genes for a single trait or multiple genes controlling a single trait.
2. Mostly three or more genes cause polygenic inheritance.
3. The skin color and eye color of an individual is an examples of polygenic inheritance.
4. The skin color of an individual is influenced by 3 genes that may be additive in nature.
5. Physical qualities such as hair color, height, and skin color, and also non-visible traits such as blood pressure, IQ, and so on, are all influenced by inheritance patterns.