The University of Massachusetts Amherst has a 6 week summer research intensive program that is really great and allows students under 16. You have to be a sophomore. You (and another students or more) would be assisting a professor with research in a university lab 9-4pm and would have to do a poster presentation at the end. You can choose which research project you want to work on (they are on the website) and there are many in biology. Also, the dorms are nice and have a/c.