In high school I had — in tenth grade — had a fabulous chemistry class.  Miss Wong was our teacher, and she was very good at helping us kids understand the process of doing science. That science is experiments.  You ask a question and then you figure out how to answer it in the laboratory. So for me, I became very interested in chemistry, but I knew I liked the living natural world.  So those were just nebulous interests of mine at the time.  And then when I heard this lecture by a biochemist talking about her research into why cells become cancerous, it suddenly gelled for me.  I realized that’s what I want to do: I want to figure out the chemistry of living things.  I want to understand the molecules that go awry in a cell that becomes a cancer cell.  How does that work?