One reason that the effects of individual genes on complex traits can be difficult to determine is that:
A)environmental effects cannot be measured.
B)environmental effects are so large that genetic effects cannot be measured.
C)a single phenotype may be produced by many different genotypes.
D)neither environmental nor genetic effects can be measured.
E)genetic effects cannot be measured, regardless of the effects of the environment.

Question

Quizplus · Accepted Answer

Many complex traits are influenced by multiple genes and environmental factors, and the same phenotype can often be produced by different combinations of genes. This means that identifying the specific contribution of individual genes can be challenging.

One Reason That the Effects of Individual Genes on Complex