Professor Dale Wigley and his team are finding out what happens when the DNA in a cell is damaged, and how the cell deals with it. If DNA damage is not repaired correctly, mistakes occur in important genes which can lead to cancer.Professor Wigley studies bacteria grown in the lab to investigate DNA repair. Bacteria are a simple model system and easier to work with than human cells. Understanding the DNA repair processes in bacteria will help Professor Wigley and his team gain insight into the similar, more complex, processes at work in human cells.Learning more about how cells repair damage to their DNA could lead to new ways to prevent or treat cancer in the future.