Answer to Question #149256 in Genetics for Vaith

Question #149256

The coding strand of DNA molecule has the sequence of nucleotides: CGT-AAG-TTC-CAG-GTA. There is a duplication of the sixth nucleotide in DNA chain. Determine the structure of m-RNA and sequence of amino acids before and after the mutation, using the table of genetic code.

Expert's answer

The mRNA strand for the initial sequence is CGU-AAG-UUC-CAG-GUA, that gives the following sequence of amino acids,

RKFQV

After the duplication event, the mRNA sequence will be CGU-AAG-GUU-CCA-GGU-A, with the following sequence of amino acids,

RKVPG