PerspectiveDNA EVENTS

An RNA Microcosm

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Science  20 Sep 2002:
Vol. 297, Issue 5589, pp. 2002-2003
DOI: 10.1126/science.1077906

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A year ago came the suprising discovery that animals have perhaps hundreds of micro-RNAs (miRNAs). Now the importance of miRNA in plants and animals is being revealed. In his perspective, Baulcombe describes new work (Llave et al.; Hutvágner and Zamore) that gives insight into how miRNA and related small RNAs may control processes as diverse as translational arrest, RNA cleavage, and genome rearrangement.