A mutation in which of the following parts of a gene is likely to be most damaging to a cell?
A)intron
B)exon
C)5' UTR
D)3' UTR
E)All would be equally damaging.

Question

Quizplus · Accepted Answer

Exons contain the coding sequence of a gene, meaning that mutations in this region can directly affect the amino acid sequence of the protein encoded by the gene. In contrast, introns, 5' UTR, and 3' UTR regions are non-coding and do not directly affect the protein sequence. While mutations in these regions may still have an impact on gene expression or splicing, they are generally not as damaging as mutations within the coding sequence.

A Mutation in Which of the Following Parts of a Gene