The biological section has less organic chemistry than it used to, and the overall exam is more verbal in character than before. When I took the MCAT, I got a 10/13/10. The overall score is not as important as getting 10+ in each section, so you can't just do well in one area and not the others. In medical school, it's hard to cheat on many exams, but certainly possible in some (and people have been caught doing so and reprimanded/kicked out). I just finished medical school and will be going onto a residency in general surgery, after being a chemist and then computer programmer for many years. I know that some people have cheated at time during the process, but they will be weeded out eventually as we take many licensing exams, and it's pretty difficult to cheat on everything and still get your license.