quite late. I only really figured out what I wanted to do when I was at uni. I was interested in biology, but also philosophy, politics, all kinds of things. But at uni it hit me that, with politics, for example, there are no right or wrong answers – just people arguing, often not very coherently… That’s when I decided that I wanted to do science
I guess as I wanted to be a doctor originally, probably from the age of about 12. But my interests changed when I was 16 and got more interested in genetics and then, eventually, during my degree I decided it was definitely what I wanted to do.