The Nobel prize in chemistry has been awarded to Tomas Lindahl , Paul Modrich and Aziz Sancar for their research into the mechanisms that cells use to repair DNA.
The three scientists, from Sweden, the USA and Turkey respectively received an equal share of the prestigious 8m Swedish kronor award for "mechanistic studies of DNA repair".
Announcing the prize in Stockholm, Göran K. Hansson, the secretary general of the Royal Swedish Academy of Sciences said: "This year's prize about the cell's tool box for repairing DNA".
The Nobel in medicine or physiology was awarded on Monday to Tu Youyou, William Campbell and Satoshi Ōmura for advances that led to treatments for diseases caused by parasites, including malaria.