Most medical schools do not require a dedicated biochemistry lab course for admission. While nearly every MD and DO program requires or strongly recommends a biochemistry lecture course, a separate biochemistry lab is rarely listed as a prerequisite. That said, the distinction between “required” and “helpful” matters quite a bit depending on where you’re applying and how competitive your application is.
What Med Schools Actually Require
The standard prerequisite package at most medical schools includes one year of biology with lab, one year of general chemistry with lab, one year of organic chemistry with lab, one year of physics (sometimes with lab), and one semester of biochemistry. Notice that biochemistry is typically listed without a lab component. The lab requirements are attached to biology, general chemistry, and organic chemistry, not biochemistry.
UCSF, for example, requires biology with lab, chemistry including at least one semester of organic chemistry with lab, and biochemistry, but specifies no lab for the biochemistry portion. The school even notes that biochemistry “may be included within the Biology or Chemistry courses,” meaning it doesn’t need to be a standalone class at all, let alone come with a lab.
Stanford takes an even more open approach. The school has no specific course requirements and instead recommends broad preparation in biology, chemistry, physics, math, and behavioral sciences. Stanford does expect applicants to demonstrate understanding of scientific inquiry through “hands-on laboratory or field experiences,” but that can be satisfied through any lab coursework or research, not specifically a biochem lab.
MD vs. DO Program Differences
For MD programs applying through AMCAS, prerequisites vary school by school. You’ll need to check each program individually, but the pattern holds: biochemistry lecture is common, biochemistry lab is not. Some schools list recommended courses beyond their requirements, and biochemistry lab occasionally appears there.
For DO programs applying through AACOMAS, biochemistry falls under a broader subject category that includes biological chemistry, biomolecules, metabolism, and physiological chemistry. AACOMAS tracks these courses for your science GPA calculation, but individual osteopathic schools set their own prerequisite lists. Again, a standalone biochemistry lab is uncommon as a hard requirement.
Why a Biochem Lab Still Helps
Even though it’s rarely required, taking a biochemistry lab gives you practical exposure to techniques that show up repeatedly on the MCAT and in medical school coursework. The MCAT’s Biological and Biochemical Foundations section tests your understanding of lab methods like gel electrophoresis (separating proteins or DNA by size), blotting techniques (identifying specific proteins, DNA, or RNA in a sample), PCR (copying specific DNA sequences for analysis), and chromatography (separating molecules based on size, charge, or binding affinity).
You can learn these concepts from a textbook or MCAT prep materials, but students who have physically run a gel, pipetted samples, or interpreted chromatography results tend to find these questions more intuitive. A biochem lab also strengthens the laboratory experience component of your application, which admissions committees evaluate holistically.
Research Experience as an Alternative
If you’ve done undergraduate research in a biochemistry or molecular biology lab, that experience often carries more weight than a formal lab course. Working in a research setting typically involves the same techniques, plus experimental design, troubleshooting, and data analysis at a deeper level. Some undergraduate programs even allow students completing an honors thesis in a biochemistry research lab to waive the formal lab course requirement for their major, based on the scope of their bench work.
For medical school admissions specifically, research experience in a relevant lab signals both scientific competence and intellectual curiosity. If you’re deciding between adding a biochem lab course and spending that time on meaningful research, the research will generally serve you better, assuming you already have your core lab prerequisites covered.
Online and Community College Courses
If you do decide to take a biochemistry lab, be cautious about the format. Virtual labs are a gray area for many health professions programs. Johns Hopkins, which offers an online biochemistry with lab course, notes that virtual labs are accepted at some institutions but not all, and recommends confirming directly with each school you plan to apply to. The same caution applies to courses taken at community colleges: some medical schools prefer or require that upper-level science courses come from four-year institutions.
Biochemistry is considered an upper-division science course, so if you’re completing it at a community college or online, check the policies of your target schools before enrolling. A course that doesn’t transfer or isn’t accepted can waste both time and money.
How to Decide for Your Application
Start by pulling up the prerequisites for every school on your list. If none of them require a biochemistry lab, you’re not obligated to take one. Focus instead on earning a strong grade in biochemistry lecture, performing well on the biochemistry-heavy sections of the MCAT, and building lab skills through your other required lab courses or research.
If you’re applying to a broad range of schools and want to avoid any risk of missing a prerequisite, taking the lab is a safe choice. It’s one semester, it reinforces MCAT content, and it adds another science course to your GPA. For students who already have extensive research experience and a full course load, though, skipping the biochem lab to focus on other priorities is a perfectly reasonable strategy. The key is making sure your application demonstrates hands-on scientific skills somewhere, whether that’s through formal coursework, research, or both.