[Charles]

In my opinion, you should just concentrate on everything needed to get admission among top USA colleges for now. You will get lot of insights and study time for your course itself once you are doing Masters. Right now, scoring good grades during your bachelors degree will probably be most important factor. Additionally some colleges require GRE.

If you are thinking which branch of biotechnology to pursue, then the best place is to go to the job sites (like monster.com) and see which streams of biotech are in biggest demand. Salary.com will give you an idea of the pay packages in various biotechnology sectors.