Question

A gene codes for a protein that is 500 amino acids long. Which of the following mutations is likely to be the most deleterious? a) a missense mutation at the 490th codon b) a nonsense mutation at the 490th codon c) a nonsense mutation at the fifth codon d)a missense mutation at the fifth codon

Answer 1

The answer is C ) nonsense mutation at the fifth codon ! my major

Answer 2

The correct answer is:

c) A nonsense mutation at the fifth codon

Explanation:

A nonsense mutation at the fifth codon will lead to the appearance of a stop codon at this position, thereby the protein will lose its function