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Medical Term:

small ribonucleic acid


RNA molecules ranging in length from 21–28 nucleotides that regulate DNA transcription, thereby modulating the level of gene expression.

See Also: ribonucleic acid interference, small interfering ribonucleic acid, microribonucleic acid

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.