Which Statement About Nonsynonymous Substitutions Is True

question 248

Multiple Choice

Which statement about nonsynonymous substitutions is true?

• A) They always affect the protein's shape and charge.
• B) They occasionally confer a selective advantage on the organism.
• C) The frequency of their occurrence is roughly the same among different genes.
• D) They are unlikely to be influenced by natural selection.
• E) In most genes, they occur more frequently than synonymous substitutions do.

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