Question

What is meant by gene interaction?
Why gene interaction occurs? ​

Answer 1

Answer-

Gene Interaction-

• It is the case when two or more different genes influence the outcome of a single trait.

• Production of the particular phenotypic characters comes from the interaction between allelic or nonallelic genes of the same genotype.

Gene interaction is of two types

1. Allelic Interaction

• Incomplete Dominance
• Co-dominance
• Pleiotropy

2. Non Allelic Interaction

• Complementary Gene
• Epistasis

Answer-

Gene Interaction occurs because-

• For a given locus within the population there may be more than two alleles.

• It may happen that Dominance of one allele on other may not fulfilled.

• On the interaction of two or more genes the expression of a trait may be dependent.

• A single trait trait may be affected by the two or more genes.