So how do medical schools look at lab grades? I'm a freshman at a huge state school, and chances are that I'll get a B in bio lab (3 credits) because of an unreasonable TA. So far I've gotten all As in my premed classes (Gen chem 1 and bio 1). Right now i'm in gen chem ii and molecular bio and I think I'll be fine on those, but this lab thing is really getting on my nerves.