ktlink: Ask about pre-med and biology in the BC forum. http://talk.collegeconfidential.com/boston-college/
There is a lot of information on these topics and many who can answer questions and address possible concerns you may have with first hand knowledge particular to the respective college. Likewise the UCI forum: http://talk.collegeconfidential.com/university-california-irvine/
Good luck and congrats on your wonderful choices!