Biology major...

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<li><p>Take the classes you need. Apply. If you don’t finish on time, hope for the best or reapply the next year. Having a missing prereq or two won’t kill your chances of getting accepted. From what I’ve heard, UCLA and UCB like to see the life science series completed first, then organic chemistry. If you have time, do physics; I transferred without it.</p></li>
<li><p>Do what you want. First and for-most, UCs care about GPA and completion of prereqs. You don’t have to cure cancer, just get involved: join a club, get an internship, volunteer, tutor, whatever. </p></li>
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<p>3., 4. Can’t help you here. </p>

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<li>I think this one is depends on the school, major, and the prereq in question. Generally speaking, I’d say major prereqs are more important; especially for life science majors. However, I’ve yet to meet someone whose transferred to either UCLA or UCB and has not finished IGETC, go figure. Also keep in mind, sacrificing one for the other will hurt your chance of admission.</li>
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