How to Apply to Life Sciences and Pre-Health Study at Wesleyan University: Admitted to the University, Declare a Major After Enrolling, Majors in Biology, Molecular Biology and Biochemistry, and Neuroscience and Behavior, Plus Pre-Health Advising, No Nursing Major Found in the Pages We Read, for US, International (Including Chinese) and Transfer Applicants

At Wesleyan University, in Middletown, Connecticut, the life sciences sit in three units: the Department of Biology, the Department of Molecular Biology and Biochemistry (MB&B) and the Neuroscience and Behavior Program (NS&B). In its transfer FAQ Wesleyan says students are admitted to the University, not to a specific major. This guide covers fall 2027 entry for U.S. applicants, international applicants (including those from China) and transfer applicants, based on Wesleyan’s own pages.

1. Relevant undergraduate majors

• Biology major: the catalog describes using current experimental approaches, across evolution, ecology, cell biology, genetics/genomics and neuroscience, and says it can lead to research, medicine, conservation, public health and bioethics.
• Molecular Biology and Biochemistry (MB&B): molecular biology, biochemistry, biophysics, structural biology, cell biology, genetics, epigenetics, genomics and computational modeling; the catalog calls it foundational training for medicine, public health, pharmaceutical and biotech careers and more.
• Neuroscience and Behavior (NS&B): an interdisciplinary major across biology, psychology and chemistry, with lab-based methods courses and research.
• Chemistry: the biology majors all include chemistry courses, and the Career Center’s data page says the four most common majors among health-professions applicants are Biology, Neuroscience and Behavior, Molecular Biology and Biochemistry and Chemistry. We did not read the Chemistry major page; check the catalog.
• Related minors and programs: an Informatics and Modeling minor (its Integrative Genomic Sciences pathway is aimed at life-science majors), a Molecular Biophysics minor, and a BA/MA program in each of Biology, MB&B and NS&B (competitive; based on GPA, faculty recommendations and research experience; students are advised to begin research by junior year).
• Undergraduate nursing, public health, kinesiology, nutrition or pharmacy: the catalog’s department list we read has none of these, and the Career Center lists nursing under graduate and non-doctoral health careers. We found no undergraduate nursing major.
• STEM designation: the pages we read do not say whether these majors are STEM-designated; not published there, so ask admissions or the departments.
• BS/MD programs: none found in the pages we read.

2. Admission: to the university first, then the major

• You do not apply to a department, and there is no major-specific admission line. The application checklist we read has no intended-major item, so go by the Common App or Coalition form itself.
• Biology: the catalog says starting in the first year gives the most access to upper-level courses and research, and the major can still be completed if started in sophomore year. The introductory courses have no prerequisites or corequisites, but some chemistry background, or taking General Chemistry at the same time, is recommended. No grade threshold for entering the major is stated. At least three 200-level-or-above electives counted toward Biology cannot also count toward another major.
• MB&B: starting in the first year is encouraged; starting in sophomore year can still work. All courses counted toward the major must be taken for a letter grade.
• NS&B: students are admitted to the major in March of sophomore year, having completed at least two of the full-credit foundation or core courses with grades of C- or better, at least one being NS&B213 or BIOL181.
• Honors: all three ask for a B (85) average in major courses, a research thesis and faculty recommendation.

3. Course sequences (2026-27 catalog)

Biology

• Two introductory courses with labs: BIOL181 (with lab BIOL191) every fall and BIOL182 (with lab BIOL192) every spring.
• Six or more 200- and 300-level biology electives, including one mid-level cell/molecular course (MB&B208, BIOL210, BIOL212 or BIOL218) and one organismic/population course (NS&B213/BIOL213, BIOL214, BIOL215, BIOL216 or BIOL217).
• Chemistry: General Chemistry (CHEM141 and 142), Honors Chemistry (CHEM145) or one semester of organic chemistry (CHEM251 or 252); the catalog lists slightly different options for the Class of 2029 and later and the Class of 2028 and earlier.
• Three credits of related science outside Biology, from at least two departments: organic chemistry, physics, mathematics (MATH117 or higher), statistics, data analysis, computer science or earth and environmental science.
• One capstone: a 300-level seminar, lab or field course, a 500-level journal club, a two-semester senior thesis, a 400-level research tutorial, or a summer research internship in biology or a related field.

Molecular Biology and Biochemistry (MB&B)

• MB&B181/191 and 182/192 (introductory biology and labs), General Chemistry CHEM141/142 with labs, Molecular Biology MB&B208, and Organic Chemistry CHEM251/252.
• One college mathematics course (calculus or statistics recommended; AP credit is not accepted for it), Physical Chemistry for the Life Sciences MB&B381 (replaceable by two semesters of physics or physical chemistry), Biochemistry MB&B383, an advanced lab (MB&B394 or 395) and two electives, at least one a 300-level MB&B course.
• The catalog’s note for pre-meds: organic chemistry labs (CHEM257 and 258) are a requirement for virtually all graduate and medical schools, and most medical schools also require a year of physics with labs and two semesters of mathematics.

Neuroscience and Behavior (NS&B)

• Foundation: BIOL181/191 and 182/192, two semesters of general (or honors) chemistry, two of organic chemistry, plus two more courses chosen from introductory psychology, physics, calculus (MATH117 or higher) and programming (COMP112 or higher).
• Core course NS&B213 (Behavioral Neurobiology); five advanced courses, two cross-listed with biology, two with psychology and one research or methods course.

4. Pre-med: what the Career Center says

Wesleyan has no pre-med major. Pre-health advising sits in the Gordon Career Center. We report only what its pages state.

• Choice of major: the Center says medical schools in particular do not require a specific major and that you should choose by interest and aptitude, but many health graduate programs do require specific science courses.
• Institutional Letter of Support (committee letter): Wesleyan endorses medical, dental and veterinary applicants through this collaborative process, and the page “strongly encourages” pre-med students to request it the fall before their application year. A less involved Letter Packet is available to those more than 5 years out, those who miss deadlines, and applicants to non-medical, non-dental and non-veterinary health professions.
• Coursework: the page says many schools have further specific requirements, such as biochemistry or social and behavioral courses like psychology, and tells you to check each school’s website and the MSAR course requirements document. From fall 2026, CHEM141L/142L count as a year of general chemistry lab and CHEM251L/252L as a year of organic chemistry lab; before that the sequence was CHEM152, 257 and 258. Introductory biology is BIOL181/182 with two half-credit labs. It recommends one semester of statistics and one of calculus (statistics via MATH132, PSYC200 or QAC201). Almost all U.S. medical schools require a year of English in literature, creative writing or composition and rhetoric.
• AP and exemptions: the page says most medical schools will not excuse course requirements because of AP or a departmental exemption; if you skip the first course of a two-part series, schools often still expect a further higher-level course in that discipline.
• Grades: it advises a C or higher in all science courses, repeating prerequisites with C- or lower, avoiding pass/fail for prerequisites and keeping to at least four courses a semester.
• Timing: to attend a health professional program right after graduation you must finish the admission requirements by the spring of junior year; the page says most applicants take one or more growth years.
• Data (the Center’s figures): from 2023 to 2025 Wesleyan’s cumulative acceptance rate to medical school was 68.4% against a national average of 45.9%, and in 2025 72% of its medical school applicants took 1, 2 or 3 growth years. See the page for how the data are defined.
• Dental and veterinary: the page says some courses are not offered at Wesleyan (for dental, anatomy and physiology; for veterinary, anatomy and physiology, microbiology with lab, genetics, animal nutrition, zoology and public speaking) and suggests taking them at a community college, another four-year institution or online where allowed. (The catalog’s biology electives do list MB&B/BIOL231 Microbiology; we did not check whether it has a lab.)
• Pre-health contact listed on the data page: health.professions@wesleyan.edu.

5. High school preparation and credit

• High school courses: the first-year application page we read lists no required high school math or science courses; not published there. It encourages one of the two academic teacher evaluations to come from a math or science teacher.
• Once in a major: Biology’s introductory courses have no prerequisites and some chemistry is recommended; MB&B requires one college mathematics course; NS&B’s foundation includes chemistry, organic chemistry and a choice of psychology, physics, calculus or programming courses.
• AP Biology (4 or 5): the Biology catalog says students may be eligible to place out of BIOL181 or BIOL182 after consulting the instructor, but must still take the corresponding lab (BIOL191/192). The MB&B catalog says AP Biology 4 or 5 earns one credit but does not automatically place out of MB&B181, which requires a placement exam in the first week. AP Chemistry 4 or 5 must meet Chemistry Department rules, and AP credit is not accepted for the MB&B math requirement. The NS&B catalog says AP credit may be used to place out of foundation courses, subject to the host department’s guidelines.
• Cap: the transfer page says at most two AP or IB credits count toward the degree. How IB scores are credited for these majors is not published in the pages we read.

6. Rounds, deadlines and materials (the pages carry no year; confirm fall 2027)

• Early Decision I: 15 November, financial aid also 15 November, decisions mid-December.
• Early Decision II: 1 January, aid 1 January, decisions mid-February.
• Regular Decision: 1 January, aid 15 January, decisions late March.
• Materials: the Common Application or the Coalition Application (via Scoir) with Wesleyan’s questions; secondary school report and transcript (including courses in progress) and school profile; counselor recommendation; midyear grades; two academic teacher evaluations; $65 application fee, waived for anyone applying for financial aid.
• Testing: SAT or ACT is optional and most students are not required to submit; homeschooled applicants must submit SAT or ACT scores.
• Wesleyan sets no separate deadline or materials for the life-science majors.

7. U.S. applicants

• The cost page does not distinguish in-state from out-of-state tuition, and the pages we read do not say whether U.S. applicants are admitted need-blind.
• Wesleyan promises to meet 100% of demonstrated need, with loan-free aid packages.
• If you aim at medical school, book Career Center advising early (section 4).

8. International applicants

• Timeline: the same as for U.S. applicants. International students are about 10% of undergraduates; Wesleyan says admission for aid-seeking international applicants is extremely competitive.
• International exam results: applicants studying A-levels, the French Baccalaureate, IB and similar must provide scores (actual or predicted, sent by the school with the School Report).
• English: optional but strongly recommended where English is not your first language. Wesleyan’s listed minimums: TOEFL iBT 100 (or 5/6), IELTS 7.5, SAT Evidence-Based Reading and Writing 700, ACT Reading and English 29, Duolingo 130, Cambridge 190. Self-reported scores are accepted; official scores are due by 1 July after matriculation.
• Interviews and translation: no evaluative interviews; InitialView and Vericant are accepted. Non-English documents need certified translations alongside copies of the originals.
• Proof of funds: if you are not seeking aid you submit the International Student Certification of Finances, covering four years, due 1 December (ED I), 1 February (ED II) or 15 February (RD); admission decisions cannot be processed without it. Expected annual amounts on the form: $109,400 (2027-28), $114,300 (2028-29), $119,400 (2029-30), $124,800 (2030-31), all estimates. Year-one funds must be liquid.
• Financial aid: Wesleyan meets 100% of demonstrated need for admitted students, but you must apply for aid when you apply for admission. Submit the CSS Profile (code 3959, no fee waivers) or, if you cannot, the International Student Financial Aid Application (ISFAA). The aid deadlines printed on the international aid page are the 2026-27 set (15 November 2025, 1 January 2026, 15 January 2026), so confirm the dates for 2027.
• Scholarship: aid applicants who are citizens or permanent residents of China, Hong Kong, Indonesia, Japan, Malaysia, the Philippines, Singapore, South Korea, Taiwan, Thailand or Vietnam are considered for the Wesleyan Freeman Asian Scholarship Program, which the page describes as a full four-year scholarship.
• Medical school in the U.S. (Career Center page): international applicants (non-citizens and non-permanent residents) have a particularly difficult time; most state-supported U.S. medical schools do not consider them; private schools that do may require one to four years of funds in escrow before matriculation; international applicants are not eligible for U.S. government loans. The Center points to the AAMC guide for international applicants and the F-1 Doctors mentorship program. Whether international students face limits on clinical or laboratory placements in these majors is not stated in the pages we read.

9. Applicants from China

• The pages we read do not say whether the Gaokao is considered and give no China-specific admission requirement; not published there. Ask intladmission@wesleyan.edu.
• Stated requirements that apply: certified translations of non-English documents; scores for exam-based curricula; English proficiency scores are strongly recommended; citizens or permanent residents of China who apply for aid are within the Freeman Asian Scholarship’s scope.
• Wesleyan also states that it does not authorize anyone outside the United States to represent the Office of Admission, or form relationships that confer preferential treatment.

10. Cost and research

• 2026-27 (USD): tuition $75,916, student activity fee $404, new student matriculation fee $300, food and housing $21,660, books and personal expenses $2,750, total $101,080 (first-year) or $100,780 (continuing), with an optional $50 Green Fund. All undergraduates must live in university housing and join a meal plan. No extra college or major surcharge for the life sciences is listed.
• Research: the MB&B catalog says majors work alongside PhD and MA students; research for credit can be 0.25, 0.5 or 1.0 credit, and a 1.0-credit student is expected to spend at least 10 hours a week. Biology’s capstone options include a summer research internship; all three majors have honors theses.
• Funding and career resources: the Gordon Career Center pages mention Wes Career Grants and summer grants for unpaid or underpaid internships and research, and events on life-science internships. The pages we read do not describe any restriction for international students; confirm with the Center.

11. Transfer

• Eligibility: a high school diploma; full-time study elsewhere; by matriculation at least one full year of coursework (a minimum of 6 Wesleyan credits) but no more than two (maximum 16); entering as a first-semester sophomore, second-semester sophomore or first-semester junior. Students entering as second-semester juniors or beyond are not eligible. First-semester juniors may be barred from some programs; the page names the College of Letters, the College of Social Studies, Economics, Film and Psychology, and we read no life-science major in that list.
• Deadline: 15 March for fall entry, decisions in April (the page is written for entry in September 2026, so confirm the date for fall 2027). Deferral requests are not considered.
• Materials: Common App, college report, all college transcripts, final high school transcript, mid-term report, two college instructor evaluations, $65 fee (waived for aid applicants); testing optional.
• Credit: C- or better (B- for summer courses), similar to a Wesleyan course and at college level; at most two AP or IB credits. A credit review comes with the offer of admission.
• Moving into a life-science major: the Biology catalog says up to two outside credits in biology may count, with prior permission from the departmental liaison; the NS&B catalog says foundation courses accepted by the biology, chemistry and physics departments can substitute, and in general only one advanced course can be substituted, with the program director’s approval; the MB&B catalog says transfer students must also take any MB&B181 placement exam in the first week. A GPA or required-sequence threshold for transferring into these majors is not published in the pages we read.
• International transfer students: no financial aid; those not seeking aid submit the finance certification (due 1 April).

Checklist

U.S. applicants:

• ED I 15 November, ED II and RD 1 January; $65 fee; testing optional
• After enrolling, take BIOL181/182 or MB&B181/182, and contact the Gordon Career Center early if you are pre-med

International applicants (including China):

• Exam results for international curricula; English scores strongly recommended; finance certification if not seeking aid; CSS Profile or ISFAA at application if seeking aid
• If the goal is U.S. medical school, read the Career Center’s note for international students first

Transfer students:

• 15 March for fall; enter as a sophomore (either semester) or first-semester junior
• Before enrolling, contact the department or program to check how outside courses count toward the major

Sources: Wesleyan University, Catalog: Biology major (2026-27); Catalog: Molecular Biology and Biochemistry major; Catalog: Neuroscience and Behavior major; Biology Department; Gordon Career Center: Medical, Dental and Veterinary; Academic preparation for medical, dental and veterinary school; Health professions outcomes data; Information for international students applying to medical school; First-year applicants; International applicants; Transfer applicants; Cost of attendance. Some deadline pages carry no year, so confirm they apply to fall 2027 entry; costs are 2026-27 figures. Check Wesleyan for the latest details.