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small ribonucleic acid


Definition: 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

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.