Definition of Intervening sequence

1. Bad Bugs and Their Bites Slideshow
2. Heartburn: Foods to Eat and Avoid Slideshow
3. Understanding Multiple Sclerosis Slideshow

Intervening sequence: Part of a gene that is initially transcribed from the DNA into the primary RNA transcript but then is excised (removed) from it when the so-called exxon sequences on either side of it are spliced together.

Intervening sequences, which are also called introns, are genetic sequences that intervene between the exxons. The DNA of a gene is thereby made up of an alternation of introns and exxons.

Need help identifying pills and medications?
Use the pill finder tool on RxList.