Navigating a life sciences degree at Louisiana State University requires more than picking a general major. With multiple tracks spanning from cellular mechanics to global ecosystems, planning your coursework early dictates whether you graduate ready for medical school, graduate research, or industry employment.
The LSU Department of Biological Sciences offers distinct undergraduate paths: a Bachelor of Science (B.S.) in Biological Sciences, a Bachelor of Arts (B.A.), a B.S. in Biomedical Sciences, and a B.S. in Ecology and Evolutionary Biology. Each program serves a different career destination. Choosing the wrong track in your freshman year can add semesters of catch-up coursework in organic chemistry or physics.
Core Degree Paths in LSU Biological Sciences
The department structures its undergraduate offerings into specific disciplinary concentrations. Understanding what each requires helps you align your classes with your post-graduation goals.
Bachelor of Science in Biological Sciences
The traditional B.S. gives you maximum flexibility. It covers core principles across zoology, botany, genetics, and physiology.
- Best for: Students targeting general biotechnology jobs, wildlife biology, or keeping graduate school options open.
- Key coursework: General microbiology, cell biology, genetics, and vertebrate physiology. You'll spend significant time in labs analyzing DNA sequences or observing cellular processes.
Bachelor of Arts in Biological Sciences
The B.A. option reduces upper-level laboratory and chemistry requirements in exchange for more electives in humanities or secondary education fields.
- Best for: Future science teachers, technical writers, or pre-law students focusing on environmental policy and patent law.
- Key coursework: Same foundational biology core as the B.S., but with fewer physical science prerequisites.
Biomedical Sciences Concentration
If your eyes are set on medical, dental, pharmacy, or PA school, the Biomedical Sciences track focuses tightly on human health and disease pathology.
- Best for: Pre-med and pre-health professional track students.
- Key coursework: Biochemistry, immunology, mammalian physiology, and histology. You examine disease mechanisms at the molecular level.
Ecology and Evolutionary Biology Concentration
This track takes you outside the classroom and into field stations, coastal marshes, and evolutionary labs.
- Best for: Conservationists, marine biologists, and evolutionary researchers.
- Key coursework: Plant ecology, animal behavior, population genetics, and biostatistics. Field courses require hands-on sampling in Louisiana's unique coastal ecosystems.
Building Your Pre-Professional Timeline
Success in LSU's biological sciences relies on pacing your prerequisite sequences. Chemistry is the primary bottleneck for biology majors.
You need to complete General Chemistry I and II alongside Biology I and II during your first three semesters. Falling behind in chemistry delays your entry into Organic Chemistry, which blocks upper-level biochemistry and cell biology courses.
- Freshman Year: Focus on foundational math, general chemistry, and introductory biology sequences. Don't overload lab credits in your first semester.
- Sophomore Year: Tackle organic chemistry while taking genetics and cell biology. Start talking to faculty about undergraduate research openings.
- Junior Year: Take physiology, ecology, and specialized electives. Prepare for professional admissions tests like the MCAT, DAT, or GRE.
- Senior Year: Complete capstone labs, senior thesis projects, or field research. Secure letters of recommendation from professors who know your lab work.
For official curriculum sheets and course prerequisites, check the LSU Department of Biological Sciences.
Undergraduate Research Opportunities
Sitting in a lecture hall won't cut it if you want to stand out for medical school admissions or Ph.D. programs. LSU sits adjacent to major research centers and field facilities where undergraduates can work directly alongside faculty.
The Louisiana State University Museum of Natural Science offers incredible opportunities for students interested in ecology and evolution, housing one of the largest university-based research collections of birds and DNA tissues in the world.
To secure a research position:
- Browse faculty directory pages on the LSU Biological Sciences site to find labs studying topics that genuinely interest you—from cancer metabolism to wetland ecology.
- Read 2-3 recent papers published by a professor before emailing them. Generic emails get ignored.
- Express willingness to start by washing glassware or assisting senior graduate students with basic data entry. Everyone starts somewhere.
Common Mistakes to Avoid
Many biology students stumble during their first two years due to avoidable planning errors.
- Treating labs as an afterthought: Lab grades often use different grading scales than lecture exams. Don't let a sloppy lab notebook drag down your GPA in a 4-credit course.
- Ignoring the math requirement: Most biology tracks require statistics or calculus. Take your math courses early rather than cramming them into your senior year alongside board exam prep.
- Isolating yourself from advisors: The biological sciences advising office sees thousands of students. If you wait until registration week to book an appointment, you'll miss out on preferred class sections.
Frequently Asked Questions
What GPA do I need to stay competitive for pre-med tracks at LSU?
While minimum graduation requirements hover around a 2.0, competitive professional programs (medical, dental, veterinary) generally look for a cumulative and science GPA (BCPM) of 3.5 or higher.
Can I double major in biological sciences and psychology?
Yes. Many pre-health students pair biology with psychology or chemistry because the prerequisite overlap is substantial, requiring only a few extra electives per semester.
Are freshman science classes curved at LSU?
Introductory courses like General Biology and General Chemistry often use standardized departmental exams with grade distributions scaled based on class performance. Relying on high school study habits usually results in lower freshman grades unless you transition to active recall and practice problem sets early.
How do I find paid internships through LSU?
Check the LSU Olinde Career Center job board and departmental listservs every spring semester. Many state and federal agencies, including the USGS National Wetlands Research Center in Baton Rouge, hire LSU undergrads for paid summer field positions.
