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It is likely that, even if you have taken AP biology, you will take a few additional bio classes nefore MCAT.</p>
<p>Or, look at this issue from another point of view. Are you willing to sit next to another MCAT tester who has had 4 years worth of biology classes under his belt, and years of reading biology related research papers, and compete against such a test taker only with the knowledge and reading skills of what you have obtained from your high school AP bio class? Heck, DS knew a person with a PhD in biology and had had many years of full-time bio research experiences at a top research center as a postdocs who also took MCAT test a year before DS took the MCAT test.</p>
<p>Although DS is an outlier because he took his MCAT quite late (a couple of days after his graduation), he had been graduated with a bio BS major, with all of his biology classes taken with As, when he took his MCAT. And he thought the biolgy section on his MCAT test is not easy when he walked out of the test room. (He did end up with a 14 though.)</p>
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I think this depends on the policy of the college you attend. Some college (esp. some state college which is under budget) will not allow you to take intro bio once you have had the AP score; some college (esp. the departmental academic advisor of, say, bio department, BTW, this is not the same as the premed advisor of the premed committee if your school has one) will encorouage you to take the next-level bio classes.</p>
<p>At DS’s college, I heard that, in one year, the majority of students who are in an intro bio class have had an AP bio 5 at high school. (and in a mid term exam, DS heard the average grade was like 46 out of 100!)</p>
<p>Some CCers here once suggested that AP Bio is the only AP test (among Biology, Chemistry and Physics) that you could take without any potential disadvantage if you go to a school that prohibit the students with AP test scores from taking intro science classes – unless you will definitely major in chemistry or physics.</p>
<p>Do not get me wrong. You should take any many AP classes as possible to build up your strength in sciences. You will need that for two purposes: 1) A competive college will not accept you without these under your belt, generally speaking. 2) You will need the academic strength obtained by taking AP classes to survive premed classes. The reason 2) is a particularly important one. Just be careful about taking AP test and have a score from college board, unless you are sure you will compete well against science majors in their bread-and-butter upper-division classes (e.g. P-chem or quantum physics) and/or your future college will not prohibit you from taking intro science classes after you have had AP test scores.</p>