<p>Munchkin, I have a friend whose D is in a medical program at Cambridge. She entered it directly after HS as an undergrad. In terms of US coursework, she was required to have AP Bio, AP Chem, and AP Calc. She was required to receive 5s on the science AP exams, and 4 on Calc. Presumably they regarded this as equivalent to the 3 A-levels a UK student would have taken.</p>