Gary Ruvkun, PhD, Massachusetts General Hospital and Harvard Medical School, and Victor R. Ambros, PhD, of the University of Massachusetts Medical School and have been awarded the 2016 March of Dimes and Richard B. Johnston, Jr., MD Prize in Developmental Biology. The Prize recognizes their pioneering co-discovery of an unanticipated world of the tiniest genes, microRNAs (or miRNAs), and the mechanism by which they regulate their targets.

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