font size

Definition of Intervening sequence

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 exons sequences on either side of it are spliced together.

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

Source: MedTerms™ Medical Dictionary
http://www.medterms.com/script/main/art.asp?articlekey=4001
Last Editorial Review: 10/30/2013

Drug Medical Dictionary of Terms by Letter

Top RxList Drug News

advertisement
advertisement
Use Pill Finder Find it Now See Interactions

Pill Identifier on RxList

  • quick, easy,
    pill identification

Find a Local Pharmacy

  • including 24 hour, pharmacies

Interaction Checker

  • Check potential drug interactions
Search the Medical Dictionary for Health Definitions & Medical Abbreviations