Original: Mario Renato Capecchi (born 6 October 1937) is an Italian-born American molecular geneticist and a co-winner of the 2007 Nobel Prize in Physiology or Medicine.
Simplified: Mario Renato Capecchi (born 6 October 1937) is an Italian-born American molecular geneticist who won the 2007 Nobel Prize in Physiology or Medicine along with Sir Martin J. Evans and Oliver Smithies.