Blending Interests in Science and Business
You may have started college as a science or business major, and thought about switching (or double majoring) in the other one. You may have become aware of the many opportunities from biotechnology. You may have been a "pre" track person (e.g. pre-med) and have had a change of heart.
In any case, you might want to consider a new sort of graduate program exemplified by the Keck Graduate Institute out in California. There may be others around the nation; I just know about this one.
The Keck Masters of Bioscience degree is an MBA type of degree that blends business and science. They accept GRE or MCAT or GMAT scores as part of the admission package, and have a preference for applicants who majored in college in the natural/life sciences, pre-med (or other similar health), mathematics, engineering, or computer science. Graduates go on to a range of biotech/healthcare careers.