Two Synonymous Codons Are Specific for Histidine

Two synonymous codons are specific for histidine. If the last base of one of these codons was changed to a different nucleotide, what could be the outcome?

A) There would be a frameshift mutation.
B) The codon would specify an amino acid other than histidine.
C) Because of degeneracy, the codon would still specify for histidine.
D) The codon could still be specific for histidine, or it could be specific for a different amino acid.
E) It would result in a 'nonsense' codon that did not specify any amino acid.

Correct Answer:

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