A computer generated model of a yellow and blue double helix.

A model representing the DNA double helix. Image courtesy of the National Institute of Environmental Health Sciences-National Institutes of Health.

We have selected relevant material from MIT's introductory courses to support students as they study and educators as they teach the AP* Biology curriculum. This section is organized by the topics that you’ll see on the biology exam.

*AP is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.