BIOL 20ACell and Molecular Biology
Introduction to biochemistry, cell biology, molecular biology, and genetics.
Prerequisite(s): CHEM 1A, CHEM 3A, or CHEM 4A. First pass enrollment restricted to proposed majors in the following: Biology BA, Biology BS, MCD Biology BS, Neuroscience BS, Ecology and Evolutionary Biology BS, Marine Biology BS, Plant Sciences BS, EEB/ENVS combined BA, Global and Community Health BS, Biochemistry and Molecular Biology BS, Microbiology BS, Science Education BS, Biomolecular Engineering BS, or Biotechnology BA.
- First pass enrollment restricted to proposed majors in the following: Biology BA, Biology BS, MCD Biology BS, Neuroscience BS, Ecology and Evolutionary Biology BS,Marine Biology BS, Plant Sciences BS, EEB/ENVS combined BA, Global and Community Health BS, Biochemistry and Molecular Biology BS, Microbiology BS, Science Education BS, Biomolecular Engineering BS, or Biotechnology BA
Find a section and add it to your scheduleLive seat counts, time-conflict checks and the walk from your previous class.
When it runs
Winter 2027Open Winter 2027
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Mon Wed Fri 10:40am–11:45am | Kresge Acad 3105 | M. S. Jurica | Open 0/600 |
Fall 2026Open Fall 2026
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Tue Thu 11:40am–1:15pm | Kresge Acad 3105 | G. Bordignon | Open 424/456 |
Spring 2026Open Spring 2026
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Mon Wed Fri 2:40pm–3:45pm | Kresge Acad 3105 | J. W. Tamkun | Open 549/575 |
Winter 2026Open Winter 2026
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Tue Thu 9:50am–11:25am | ClassroomUnit 002 | G. Bordignon | Open 449/456 |
Fall 2025Open Fall 2025
| Section | Type | When | Where | Instructor | Seats |
|---|---|---|---|---|---|
| 01 | Lecture | Mon Wed Fri 12:00pm–1:05pm | Kresge Acad 3105 | M. S. Jurica | Open 455/456 |
Who teaches it
| Instructor | Rating | Difficulty | Would take again | Reviews |
|---|---|---|---|---|
| Melissa Jurica | 2.2 / 5 | 4.3 / 5 | 23% | 144 |
| Guido Bordignon | 3.9 / 5 | 3.6 / 5 | 78% | 68 |
| John Tamkun | 3.8 / 5 | 4.0 / 5 | 69% | 186 |
From RateMyProfessors, which is student-submitted and not a survey. Small review counts move a long way on one bad quarter.
SlugAtlas is a student project and is not affiliated with, endorsed by, or operated by UC Santa Cruz. Course data is a snapshot of the public class search; myUCSC is authoritative for enrolment.