Ted: Ted Ed: What Happens When Your Dna Is Damaged?

The DNA in just one of your cells gets damaged tens of thousands of times per day. Because DNA provides the blueprint for the proteins your cells need to function, this damage can cause serious issues-including cancer. Fortunately, your cells have ways of fixing most of these problems, most of the time. This video and activity guide details the processes of DNA damage and repair. [4:59]