<p>Yes you can switch not only majors but also schools within Duke if you wanted. It is much easier to switch from Pratt—>Trinity than the other way around because of how rigid the curriculum is in Pratt. So if you were doing bio and decided to switch to BME your senior year… good luck kid. But if you are coming into Duke and are a freshmen and want to switch to BME, it is definitely possible but will be a little harder because of the courses you are required to take.</p>
<p>If you were doing bio first semester but decided you wanted to do BME starting your second semester of the freshmen year, you would have missed EGR53 (a required programming class for all engineers), a math class (calc 1, 2, or 3… one of them) and a chemistry class as well because all engineers have to take one chemistry (this is assuming you were not taking chemistry freshmen year). So it is not easy, you should really think about what you want to do now. Half of BMEs are pre-med but there are numerous pre-meds in trinity as well. BME will be challenging and quite a few kids drop bme and switch to bio/chem for pre-med because they realize how demanding engineering is. hope this helped</p>