Which statement about nonsynonymous substitutions is true?

Question

Quizplus · Accepted Answer

Nonsynonymous substitutions are changes to the DNA sequence that alters the amino acid sequence of the protein produced. These changes can potentially affect the protein's function and may confer a selective advantage or disadvantage to the organism. Therefore, statement B is true.

Statement A is not always true since nonsynonymous substitutions may or may not affect the protein's shape and charge, depending on the location and nature of the substitution.

Statement C is false since the frequency of nonsynonymous substitutions can vary widely among different genes.

Statement D is not true since nonsynonymous substitutions can be influenced by natural selection.

Statement E may or may not be true, depending on the gene and the specific mutations that occur. In some genes, synonymous substitutions may occur more frequently than nonsynonymous ones.

Which Statement About Nonsynonymous Substitutions Is True