Nazneen Rahman - The singing geneticist

Nazneen Rahman is professor of human genetics at the Institute of Cancer Research, London, and head of cancer genetics at the Royal Marsden Hospital. Her work focuses on identifying gene mutations that predispose some people to getting cancer. She is also a singer-songwriter and has just released her second album Questions no Answers. She talks to Kim about her work, her unusual career combination and the difficulty of answering the question "what do you do?"