I tried searching for this, but couldn't find anything. I decided that I want to apply to medical school pretty late, and by that time I had already taken the two biology courses for required for non-science majors (I'm a psychology major). I got A's in both, and that allows me to move on to upper division biology courses at my university. My premed adviser said that as long as I have the required amount of biology courses, it doesn't matter that I did not take the intro courses for science majors. I'm planning on taking genetics, microbiology, immunology, and vertebrate physiology in the biology department. I was really happy when I heard that I don't have to retake the intro courses, but I have seen a post or two on these forums that specifically says that the intro courses for science majors are required, and I just want to make sure my adviser gave me the correct info. I go to a university in Texas and plan on applying mainly to Texas schools. Thanks for your help.