PHYSCI 125

Molecular Systems Biology

Physiological Science · 5 units · Undergraduate upper division (100-199)

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Quantitative description of molecular systems that underlie myriad phenotypes in living cells. Topics include various -omics fields and high-throughput technologies, network biology, and synthetic biology. Introductory lectures on molecular biology, emerging bioinformatic approaches, and systems modeling integrated with discussions of their applications in disease-related research. Review of recent literature to gain overall perspectives about new science of systems biology.

Letter grading.

When it runs

Spring 2026
Spring 2027

Scheduled, not typical — from UCLA’s Schedule of Classes, which publishes Fall 2025 through Spring 2027 and nothing before it.

Checking the Schedule of Classes…

Requisites

Official UCLA wording
Requisites: Life Sciences 2, 3, 4, and 23L, or 7A, 7B, 7C, and 23L.

BruinTree reads · Prerequisite

needs reviewconfidence 0.45 · from text

one of

all of
all of

· "LIFESCI 2" is not in this catalog version
· "LIFESCI 3" is not in this catalog version
· "LIFESCI 4" is not in this catalog version
· "LIFESCI 23L" is not in this catalog version
· "LIFESCI 23L" is not in this catalog version
· mixed comma-level AND/OR in "Life Sciences 2, 3, 4, and 23L, or 7A, 7B, 7C, and 23L" — grouping is a best reading

Requires

Everything that has to come before this course, not just the courses named in the requisite above.

PHYSCI 125

LIFESCI 7ACell and Molecular Biology
LIFESCI 7BGenetics, Evolution, and Ecology
- LIFESCI 7ACell and Molecular Biologyanother path to it
LIFESCI 7CPhysiology and Human Biology
- LIFESCI 7BGenetics, Evolution, and Ecologyanother path to it

Unlocks

What this course is a requisite for, and what those courses lead to in turn.

No course in the catalog lists this as a requisite.