STOCKHOLM (AP) — The 2015 Nobel Prize in chemistry was announced Wednesday in Stockholm.____WHO WON THE CHEMISTRY NOBEL?Sweden's Tomas Lindahl, 77, an emeritus group leader at Francis Crick Institute and Emeritus director of Cancer Research UK at Clare Hall Laboratory in Britain; American Paul Modrich, born in 1946, is investigator at Howard Hughes Medical Institute and professor at Duke University School of Medicine in Durham, North Carolina; and U.S.-Turkish scientist Aziz Sancar, 69, is a professor at the University of North Carolina School of Medicine in Chapel Hill, North Carolina.___FOR WHAT?Starting in the 1970s, the three scientists discovered the process by which cells repair damaged DNA.___SIGNIFICANCEUnderstanding the process of DNA repair has helped the development of new cancer treatments.Join the conversation about this story »