Earning a degree in the medical field requires you to complete undergraduate coursework, earn your medical degree from an accredited medical college, and finish your residency program. Bachelor of Science in Biology. You will need to earn a Bachelors of Science in Biology before enrolling into medical school.edical College Admission Test. Before you can enroll into a medical school, you will need to pass the MCAT, which is a multiple-choice test that covers biology, physical science, verbal skills, writing abilities, and critical thinking skills.