Question

An intra-allelic gene interaction where one pair of genes masks the expression of another non-allelic gene is termed as:

• A. Dominance
• B. Polygenetic Traits
• C. Multiple allelism
• D. Epistasis

Hint:

Distinguish between dominance (interaction between alleles of the same gene) and epistasis (interaction between alleles of different genes).

Answer 1

The Correct Option is D

The phenomenon described is epistasis, which is an interaction between genes at different loci (non-allelic genes). In epistasis, the expression of one gene (the epistatic gene) masks or modifies the expression of another gene (the hypostatic gene). Dominance refers to the interaction between alleles of the same gene (intra-allelic).