From one cell to another, from one generation to the next. The genetic information that governs how
human beings are shaped has flowed through our bodies for hundreds of thousands of years. It is
constantly subjected to assaults from the environment, yet it remains surprisingly intact. Tomas
Lindahl, Paul Modrich and Aziz Sancar are awarded the Nobel Prize in Chemistry 2015 for having
mapped and explained how the cell repairs its DNA and safeguards the genetic information.