We know a whole lot about the way genes work, but we still get into debates about nature vs nurture.
How much DO our genes determine the kinds of people we are?
We will doubtless find out more over time, but we're already at a point when we can not only "read" genes, but "write" them as well. Pulitzer Prize winner ("The Emperor of All Maladies") recounts the journey so far in his book .Dr. Mukherjee visits with highlights of his surveying of the landscape.