Variation in the effects of the environment on different genotypes is known as:
A)the norm of reaction.
B)complex variation.
C)genotype-by-genotype variation.
D)genotype-by-environment interaction.
E)environment-by-environment variation.

Question

Quizplus · Accepted Answer

Genotype-by-environment interaction refers to the phenomenon where the effect of the environment on a trait is different for different genotypes. The norm of reaction refers to the pattern of phenotypic expression of a single genotype across different environments, while complex variation refers to the variation in multiple traits that are influenced by many genes and environmental factors. Genotype-by-genotype variation and environment-by-environment variation are not commonly used terms in the field of genetics.

Variation in the Effects of the Environment on Different Genotypes