Question

What are polygenes?

(a) Genes involved in quantitative inheritance

(b) Genes involved in the qualitative inheritance

(c) Genes involved in multiple allelism

(d) Multiple genes for a single trait

The question was asked during an online interview.

I'm obligated to ask this question of Polygenic Inheritance in division Principles of Inheritance and Variation of Biology – Class 12

Answer 1

Correct choice is (a) Genes involved in quantitative inheritance

For explanation I would say: Genes which are involved in quantitative inheritance are called as polygenes. In quantitative inheritance, each dominant allele expresses itself as a part of functional polypeptide and the full trait is shown when all the dominant alleles are present in an organism.