Those interested in graduate school should take the Advanced Biology Test in the fall of the senior year.
Some graduate schools require the score as a part of admissions application.
It is advisable to take the aptitude portion of the GRE since it is required by some graduate schools. Opportunities as a Graduate Biology is a diverse science and provides a wide variety of opportunities at all levels of training and experience. See your advisor or an appropriate professor in the Department concerning these options. Some programs require specific admissions procedures but sometimes personal contact through a professor is helpful. It is wise to gather as much information as possible during the sophomore year because entry requirements may have to be fulfilled in the junior or senior year.