A career in Biological Research is highly variable depending upon your interests and goals. You can work as a research technician, which usually requires either a bachelor's or master's degree. Becoming a research faculty member at a university or college will required that you earn a Ph.D. in your area of interest. Getting into graduate school will require you to take the Graduate Record Exam (GRE). The GRE score requirement varies greatly among graduate programs but most school will want to see a Verbal/Quantitative total score of 1000-1200. Many graduate schools will waive tuition costs and pay you a stipend during your graduate studies. You can pursue a Ph.D. in a biology department or at a medical school. For a list of graduate school rankings, go to the US News - America's Best Graduate Schools. Typically Ph.D. programs take 4-6 years to complete. Often to be competitive for faculty positions requires an additional 2-4 years of postdoctoral research experience. You can use your doctorate degree to focus on research or education. Some faculty positions at smaller schools emphasize teaching science. Other small schools and all large universities place a heavy emphasis on research. Private industry, such as pharmaceutical companies, is also an option. There are government jobs available covering a wide spectrum of biological areas, from environmental studies to medical research.