The phenotypes of complex traits vary with both genotype and environment. An important implication of this is that:
A)we can't predict the expression of a genotype without knowing its environment.
B)we can't predict how a given environment will affect the expression of a trait without knowing its genotype.
C)no one genotype will produce the "best" phenotype in all environments.
D)several different genotypes may produce equally fit phenotypes in the same environment.
E)All of these choices are correct.

Question

Quizplus · Accepted Answer

All of these choices are correct. The expression of complex traits is influenced by both the genotype and environment, so it is impossible to predict the phenotype without considering both factors. Additionally, different genotypes may be equally fit in the same environment, and there is no one "best" genotype that produces the optimal phenotype in all environments. Therefore, all of the choices listed in the question are important implications of the genotype-environment interaction for the study of complex traits.

The Phenotypes of Complex Traits Vary with Both Genotype and Environment