Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?
A) It changes an amino acid in the encoded protein.
B) It has no effect on the amino acid sequence of the encoded protein.
C) It introduces a premature stop codon into the mRNA.
D) It alters the reading frame of the mRNA.

Question

Quizplus · Accepted Answer

A nonsense mutation is a type of point mutation in which a single nucleotide change results in a premature stop codon in the mRNA sequence. This means that the translation of the mRNA into a protein will be terminated prematurely, resulting in a truncated and likely non-functional protein.

Which of the Following Statements Correctly Describes the Effect a Nonsense