Is a general biology degree worth it?
If you are interested in biomedical sciences with the intent on getting into medical school, you might first consider what you could do with a biology or microbiology degree should you not get into medical school or should change your mind about pursuing a career as a physician. Either such majors will be good preparation for a medical school curriculum, However, outside of medical school preparation, without advanced degrees in these fields (i.e masters, PhD) the offer limited career options. In preparation for medical school, you might consider pursuing degrees in allied health fields such as medical technology, nursing, physical therapy, or pharmacy, which will provide you with good medical school prep, as well as a great career should medical school not work out.
But pick a major that interests you so you don't mind devoting a majority of your hours to studying. You will need to get good grades in college in order to apply for medical school. At the medical school I attended, the average GPA is reported to be 3.85, so even one or two B's can hurt your chances of acceptance.