Can I get Advanced Placement in Biology?
Advanced placement credit will be awarded for students who achieve the requisite scores on the AP Biology or IB Higher Level Biology exams. Biology 20 credit will be awarded for an AP Bio score of 4 or IB-HL Biology score of 6. Biology 21 credit will be provided with an AP Biology score of 5 or IB-HL Biology score of 7.
All biology majors will start the biology ‘gateway’ courses: Students with Biology AP 5 or IB-HL 7 may take Biology 203L in the Spring semester. All students may take Biology 201L and 202L (if not 203L). These courses will introduce the three foundations of modern biology: molecular biology, genetics and evolution. The gateway courses will take you deep into the topics, beyond AP Bio, and provide a foundation for other advanced courses in biology.
In addition, advanced placement is possible in chemistry, math and physics, depending on your exam scores and by the decision of the respective departments. Students who place out of the first year of chemistry or math will not have to retake those courses for the biology major.
Note that although you can only use two AP credits to reduce the number of credits you need to take for graduation (from 34 to 32), any number of AP credits can be used for placement out of introductory courses. So, advanced placement in chemistry, math and physics will reduce the courses needed to complete the biology major, freeing you up to take more advanced courses or courses in other disciplines.
How do I get started in Biology Courses?
First‐year students can explore biology with first‐year seminars (Biology 89S and Focus courses); biology courses numbered < 200 do not count toward the biology major but are often a great way for students to explore their interest and gain background in biology. There are two introductory course sequences for the biology major:
Sequence 1. For any student: Two-Course Gateway Sequence
Biology 201L: Molecular Biology, requires Chem 21 (AP 5) or 101DL or 110DL* (offered Fall & Spring)
Biology 202L: Genetics and Evolution, no prerequisite (offered Fall & Spring)
This is the normal sequence for students without AP 5 in Biology. Students may take these courses in any order. However, although Biology 202L has no formal prerequisites, it does build on basic molecular biology concepts and vocabulary learned in a prior biology courses. Students who took Biology 201L, AP Biology, or who otherwise have a strong preparation in biology typically perform better in Biology 202L than students without a prior biology course.
Sequence 2. For students with Biology AP 5: One-Course Gateway Sequence
Biology 203L: Molecular Biology, Genetics, and Evolution, requires Biology AP 5 or IB-HL 7, and Chem 21 (AP 5) or 101DL or 110DL* (offered Spring only)
Biology 203L will cover the same material as Biology 201L and 202L in a one semester course. Therefore students who have taken Biology 201L or 202L may not take Biology 203L. Prospective biology majors must take either Biology 203L (if they have Biology AP 5 or IB-HL 7), or both Biology 201L and Biology 202L. Biology majors who satisfy their Gateway requirement with Biology 203L will have the opportunity to take an additional upper-level elective course, in lieu of the second Gateway.
*Chemistry course pre-requisites are enforced at registration
Notes about Common Situations
Typically, there are few seats available in Biology 201L and 202L for the fall semester – that’s OK. Prospective Biology majors do not need to take them in the fall and should focus on getting on track with their math, chemistry, and foreign language requirements. Most students planning to take a Gateway course will start as early the spring of the first year, or fall of their second year.
Biology courses numbered <200 are often a great way for students to explore their interest or gain background in biology. For example, students can explore biology with first‐year seminars (89S courses) and Focus courses, or with 100-level lecture courses. However, these courses do not count toward the biology major.
Prehealth students should expect to take Biology 201L and 202L or, if they have a 5 on the AP Biology exam or IB-HL 7, Biology 203L and a second biology course with a lab. However, they typically start with Chemistry & Calculus in the fall, and would then enroll in in their first biology course in the spring of their first year or in the fall of their sophomore year. This is acceptable even for students who plan to major in biology.
Students who are planning to major in chemistry, biophysics, biomedical engineering, neuroscience, psychology, or evolutionary anthropology may use Biology 203L. Students without Biology AP 5 or IB-HL 7 may need to complete one or both of Biology 201L and 202L. For the latest updates, check the website for your intended major.
Can I do research and independent study?
All biology majors are encouraged to pursue independent research in the biological sciences under the supervision or sponsorship of a faculty member. The faculty member may be in any Duke department, including Medical Center departments. You can register for independent study and receive a grade and academic credit for your research. Most students will complete at least one or two semesters of independent study during their junior or senior year, although some students begin in their second or even their first year. No credit can be awarded for paid work.
There is no limit on the number of semesters your can enroll in Independent Study, although only two semesters of independent study can be counted towards the major. Independent Study will also satisfy one of the two laboratory course requirements for the major, as well as the Small Group Learning Experience (SGLE) requirement for graduation. Additionally, Independent Study can be used to satisfy the Trinity requirement for a Research Course (R). Students may also request a Writing (W) code for an independent study with approval of their Research Supervisor and the Director of Undergraduate Studies. Many students will have their work published in the scientific literature and use their research as the basis for graduation with distinction. For more information, please visit independent study.