Two semesters with lab at a level higher than Biology 1101; some additional biology is recommended.
Most students interested in the health professions complete Biology 1109 or the Biology 1101-1102 sequence by the end of sophomore year. Prospective biology, biochemistry and neuroscience majors need to be sure to follow the recommendations of those departments. Most students find it more helpful to take introductory chemistry before taking introductory biology, rather than the other way around.