Multiple choice Exon skipping is characteristic of a mutation in which of the following locations? Promoters Entire gene Exon Intron Codon Reveal answer Fill a bubble to check yourself D Correct answer Explanation Introns are noncoding sections of an RNA transcript or the DNA encoding it, which are spliced out before the RNA molecule is translated into a protein. Exon skipping results from mutations at the splice donor or acceptor regions of introns.