Some programs require additional biology coursework beyond the introductory sequence. A subset of these programs may specify that this requirement must be at the 300 or above level. Check with your target programs when making a decision about this.
Several sub-disciplines fall under the “Biology” umbrella. Some of these include:
Physiology
Physiology is not required, but it is typically tested to some degree in the Biological Sciences section of the MCAT. There are several lecture courses that work well:
BIOLOGY 225: Principles of Animal Physiology and Neurobiology
PHYSIOL 201: Introduction to Human Physiology
PHYSIOL 502: Human Physiology
BIOMEDE 419: Quantitative Physiology
(Note that any of these lectures will work for medical schools, but Physician Assistant programs generally insist on human anatomy only, and thus tend not to take BIOLOGY 225.) Physiology labs are not required but do count as a general biology lab.
Anatomy
Anatomy is not tested on the MCAT. Human Anatomy, however, is among the very first topics taught in the first year of medical school, so a course in Anatomy can be helpful.
Genetics
While Genetics is tested on the MCAT, this subject is typically covered well enough at the introductory level that you need not take a course in it to simply prepare for the test. However, it is important to note that a subset of health professions schools list coursework in Genetics as recommended or required to prepare for their curriculum.
Microbiology
Microbiology is not required by most medical schools, but is required for a significant subset of dental schools in the United States, including the University of Michigan Dental School.
Additional upper-level biology courses
Additional courses labeled BIOLOGY, CDB, EEB, MCDB, MICRBIOL and PHYSIOL will typically be included as Biology courses. Note that some medical schools require a specific number of Biology credits or courses taken at the 300 level or higher. Here are some additional examples:
CDB 450: Introduction to Histology
EEB 341: Parasitology lecture with lab included
PHYSIOL 541 / ANATOMY 541 / PSYCH 532: Mammalian Reproductive Endocrinology
MCDB 427/429: Molecular Biology lecture & Lab
MCDB 428/429: Cell Biology lecture and Lab
Biology laboratory courses
Medical schools typically (but not always) require two laboratory courses in Biology. Note that independent research courses, such as those in which you earn credit for working on a particular research project, may not be considered sufficient.
It is safest to either take two regular methods lab classes or to carefully check the requirements of each of your target medical schools. As an LSA student, you will typically begin with BIOLOGY 173 (Introductory Biology Laboratory), and then take another methods lab associated with a regular biology lecture.
If you plan to take CHEM 352 lab (Introduction to Biochemical Research Techniques), as a requirement for your major or for interest, note that this lab will sometimes count as a Biology lab for the purposes of medical school admissions.