How Does a Nonsense Suppressor Mutation Prevent Amber Mutants from Terminating

question 6

Multiple Choice

How does a nonsense suppressor mutation prevent amber mutants from terminating their polypeptides prematurely?

• A)The mutation turns the amber codon back into a wild-type codon.
• B)The mutation alters a tRNA so that it reads the amber codon and inserts an amino acid.
• C)The mutation alters the release factors that would halt synthesis.
• D)The mutation results in a wobble that allows synthesis to continue.
• E)The mutation replaces the amber codon with an ochre codon.

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