The author is in the Department of Biochemistry, Molecular Biology and Cell Biology, Northwestern University, Evanston, Illinois 60208, USA. r-carthew@northwestern.edu
The Hindu goddess Maha Devi is represented as having the power both to make and to destroy. Reminiscent of such power, two recent studies highlight the roles that nucleases play in both making and destroying RNAs associated with the mysterious world of small RNAs.
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