A researcher is investigating a short DNA segment within a gene. When translated, the DNA segment produces a peptide chain with the sequence Met-Ala-Pro-Gly-Ser. The researcher has identified an insertion mutation that changes this segment of DNA to the segment given.
Mutated DNA segment: 3′-TACCCGAGGGCCTTC-5′
mRNA Codon Chart
Image courtesy of NIH
According to the mRNA codon chart, what is the sequence of the peptide chain produced when the mutated DNA segment is translated?
A.
Met-Pro-Arg-Ala-Phe
B.
Met-Pro-Arg-Ala-Lys
C.
Met-Gly-Ser-Arg-Lys
D.
Met-Cys-Ser-Arg-Tyr