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messenger RNA; see ribonucleic acid.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
Farlex Partner Medical Dictionary © Farlex 2012
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
messenger RNAAn RNA (ribonucleic acid) molecule which has coding regions and translation signals derived from a gene, carries the reverse template message from DNA, and is required for protein synthesis. mRNA is a nucleic acid intermediate that specifies the amino acid sequence of a polypeptide during translation. Under most circumstances, and in accordance with the so-called central dogma of biology, the message flows from DNA to RNA, which is then translated into protein. DNA is wrapped around proteins (histones in chromatin); the DNA then unwinds, allowing transcription by one of the three RNA polymerases, forming a primary (nuclear) RNA transcript that is then processed to remove the intervening RNA sequences (introns), yielding a mature mRNA molecule. The mature mRNA then passes through nuclear pores into the cytoplasm, where translation into proteins occurs. When a particular mRNA is no longer needed, it is degraded by ribonucleases.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
Abbreviation for messenger RNA.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
mRNAsee MESSENGER RNA.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005