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.
E
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