I am finishing up my sophomore year. I will have completed all my Bio's, O Chem I and II, and Calc I. I have not taken Bio Chem. I plan to take Calc II during the summer. Does anyone have any advice on whether to take my DAT this summer after my sophomore year or should I take it after my junior year? Studying for the DAT while completing applications seems like a lot to do in the summer next year, but I also want to be prepared.