Each learning path is one chapter: a guided route through a topic, one small course at a time. Pick a class to see its chapters in order.
Cotton that kills its own caterpillars, insulin made by bacteria, a girl whose immune system was repaired, a cow that gave human milk protein. These are not stories of the future. In this chapter you see how the tools of recombinant DNA are used on farms and in medicine, how a plant can switch off the genes of a worm, and why a patent on rice or turmeric can anger a whole country. Python counts survivors, chains and doses of a model, and checks base pairs.