Professor JoAnne Stubbe received the 2009 National Medal of Science for her pioneering work in understanding the enzymes involved in DNA replication and repair. Arfa Aijazi—The Tech May. 9, 2016 Facebook Twitter Reddit Print Professor JoAnne Stubbe received the 2009 National Medal of Science for her pioneering work in understanding the enzymes involved in DNA replication and repair. Arfa Aijazi—The Tech