With few exceptions, we cannot use observable traits to measure the amount of genetic variation in populations because:
A)observable traits do not vary enough among individuals to measure.
B)we cannot identify enough observable traits to be useful, even if they could be measured.
C)many traits are encoded by large numbers of genes.
D)observable traits are products of the environment as well as the genome.
E)many traits are encoded by large numbers of genes, and observable traits are products of the environment as well as the genotype.

Question

Quizplus · Accepted Answer

Many traits are the result of the interaction between multiple genes and the environment. Observable traits may vary due to environmental factors and not just genetic variation. Additionally, complex traits are often influenced by many genes, making it difficult to accurately measure genetic variation through observable traits.

With Few Exceptions, We Cannot Use Observable Traits to Measure