A mutation that changes a cysteine codon to a tryptophan codon is called a
A)missense mutation.
B)nonsense mutation.
C)silent mutation.
D)none of the above.

Question

Quizplus · Accepted Answer

A missense mutation is a type of point mutation that results in a change in a single nucleotide that changes the amino acid sequence of the protein. In this case, the mutation changes a cysteine codon (where cysteine would be incorporated into the protein) to a tryptophan codon (where tryptophan would be incorporated into the protein) resulting in a different amino acid being incorporated into the protein.

A Mutation That Changes a Cysteine Codon to a Tryptophan