Courses below are generally taught during the quarters indicated. However, this schedule is subject to change based on funding and staffing considerations.
| Course | Fall | Winter | Spring | Summer |
| BIOL 100 Topics in Biology | 100 | 100 | 100 | 100 |
| BIOL 200 Biology of the Cell | 200 | |||
| BIOL 201 Biology of Organisms | 201 | |||
| BIOL 202 Biology of Populations | 202 | |||
| BIOL 216 Genetics and Society | 216 | 216 | 216 | |
| BIOL 217 Biology of Sexually Transmitted Diseases | 217 | 217 | 217 | 217 |
| BIOL 220 Principles of Microbiology | 220 | 220 | 220 | |
| BIOL 223 Human Physiology & Anatomy I | 223 | (223) | ||
| BIOL 224 Human Physiology & Anatomy II | 224 | (224) | ||
| BIOL 300 Cell Physiology | 300 | 300 | ||
| BIOL 319 Local Flora | 319 | |||
| BIOL 320 Microorganisms | 320 | |||
| BIOL 321 Evolution | 321 | |||
| BIOL 323 Human Anatomy for Biology Majors | 323 | |||
| BIOL 324 Human Physiology for Biology Majors | 324 | |||
| BIOL 342 Biology of the Chordates | 342 | |||
| BIOL 354 Biology of Higher Plants | 354 | |||
| BIOL 380 Medical & Economic Botany | (380) | (380) | ||
| BIOL 400 Molecular Biology | 400 | 400 | ||
| BIOL 421 Genetics | 421 | 421 | ||
| BIOL 422 Genetics Laboratory | 422 | 422 | ||
| BIOL 424 Comparative Animal Physiology | 424 | |||
| BIOL 431 Comparative Plant Physiology | 431 | |||
| BIOL 440 Principles of Development | (440) | |||
| BIOL 450 Ecology | 450 | 450 | ||
| BIOL 455 Marine Biology & Ecology | (455) | |||
| BIOL 502 Genetic Engineering | 502 | |||
| BIOL 528 Concepts of Molecular Genetics | (528) | |||
| BIOL 572 Virology | (572) | |||
| BIOL 573 Immunology | 573 | |||
| BIOL 576 Endocrinology | 576 | |||
| BIOL 580 Neurobiology | (580) | |||
| BIOL 591 Biology Seminar | 591 | 591 | 591 | |
| BIOL 592 Recombinant DNA Techniques | (592) |
The following courses are offered on a less regular schedule. Consult the Biology Department to find out when these courses are scheduled to be offered: 251, 301, 304, 305, 306, 314, 331, 335, 340, 349, 360, 371, 490, 491, 522, 524, 530, 531, 532, 565, 590
The following courses are supervisory courses and will be offered at the discretion of the faculty member. Consult a biology faculty member if you are interested in taking these courses: 295, 391, 396, 575, 595