Just so you know, upper division biology courses will not help you on the DAT. It is just general bio. As TBS said, check with each school you're interested in to see which classes they require (some don't require upper division bios). Also, 👍 for acing general biology and chemistry. Just do what you did for those classes with the upper classes and you will do fine. Plus it's very likely that Physics and Orgo will plummet your GPA so don't worry too much about that, just do the best you can.