The 2007 Nobel prizes in the sciences were announced early this week.
Physiology or Medicine
The discovery of techniques to identify the roles of genes has earned three scientists the 2007 Nobel Prize in Physiology or Medicine.
The award is shared by Mario R. Capecchi of the Howard Hughes Medical Institute and the University of Utah in Salt Lake City, Martin J. Evans of Cardiff University in Wales, and Oliver Smithies of the University of North Carolina at Chapel Hill.
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