premessenger ribonucleic acid

premessenger ribonucleic acid

[‚prē′mes·ən·jər ¦rī·bō¦nü¦klē·ik ′as·əd]
(cell and molecular biology)
A giant molecule of ribonucleic acid that is transcribed from a cistron.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.