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

Question

Marcel Harrell

Biology

13 November, 03:35

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

+3

Answers (2)

Know the Answer?

Katherine Clarke · Answer 1

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

Jair Chambers · 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