When Considering Synonymous and Nonsynonymous Mutations Within a Population,which of the Following

Multiple Choice

When considering synonymous and nonsynonymous mutations within a population,which of the following is TRUE?

A) Nonsynonymous mutations will often be removed by purifying selection.
B) Synonymous mutations will often be removed by purifying selection.
C) The two types of mutations are not distinguished by purifying selection.
D) Only nonsynonymous mutations are known to occur.
E) Only synonymous mutations are known to occur.