View full lesson: http://ed.ted.com/lessons/what-happens-when-your-dna-is-damaged-monica-menesini

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. Monica Menesini details the processes of DNA damage and repair.

Lesson by Monica Menesini, animation by FOX Animation Domination High-Def.