what are introns
1 answer
Introns are non-coding segments of DNA that are present within a gene and interrupt the coding segments called exons. Introns are transcribed into RNA, but they are usually spliced out of the final mRNA product during a process called RNA splicing. While the function of introns is not fully understood, they are believed to play a role in regulating gene expression, diversifying the gene product through alternative splicing, and creating genetic diversity.