2007 Nobel Prize in Medicine or Physiology

This morning the Nobel Prize for Medicine or Physiology was awarded to Mario R. Capecchi, Martin J. Evans, and Oliver Smithies for

their discoveries of "principles for introducing specific gene modifications in mice by the use of embryonic stem cells"

An excellent summary and illustration of the research done by these scientists is available at the Nobel Prize Web site. The prize money will be split equally three ways between Capecchi, who is a U.S. citizen born in Italy, Evans, a British citizen, and Smithies, a U.S. citizen born in the United Kingdom.