Look at the following mutation: AUG-GUC-CCU-AAA → AUG-AGU-CCC-UAA-A. The base A was inserted following the start codon AUG. Describe how this mutation affects the encoded amino acid sequence.

Non sense mutation took place over here.

Explanation:

Mutation took place over here where, the base A was inserted in place of the start codon AUG.

This states that the last codon will code for a stop signal instead of amino acid.

This is a type of non sense mutation when the ribosome is stopped from reading a stretch of mRNA because a stop codon is present over there.

The original set of codon is replaced by the stop codon and the protein synthesis is stopped.