After BIO 002
Gateway: BIO 002
Building the department map…
Building the department map…
Department paths
Courses with no prerequisites inside the department that unlock the most downstream work.
The shortest canonical route from each entry point to a gateway course.
Generated from University of California, Davis’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
Each of these unlocks the largest share of downstream work on this map. Courses from other departments can appear here when they genuinely gate BIO coursework.
Intro tiers at the top, advanced work below; arrows point from a prerequisite to the course it unlocks. Courses from other departments appear where they gate BIO work. Click any course to see what it requires and unlocks without leaving this page; hovering lights up its neighbors. The lists on this page carry the same courses in text form.
Showing the 8 BIO and feeder courses that have prerequisite links. 1 more BIO course have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
The concentrations and majors that build on BIO, and how their requirements are structured. Expand a program to see which courses satisfy each group, then plan it in the Planner.
English Composition & Communication Requirementchoose 1
OR any course from the UWP 102 or UWP 104 series.; UWP 102B , UWP 102G , or UWP 104E recommended; Passing the Upper Division English Composition Exam.; English Composition & Communication Requirement Subtotal
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Biological Science; Choose a series:; OR; Geology; Chemistry; Choose a series:; Physics; Choose a series:; Economics; Mathematics; Environmental Science & Policy; Satisfaction of the General Education requirement.; Preparatory Subject Matter Subtotal
Core Subject Matterchoose 1
Environmental Science & Management; Ecology; Environmental Science & Policy; Statistics; Students completing the Environmental Data Science specialized track may also choose STA 032 and cannot choose STA 013 , STA 013V , or STA 013Y .; Environmental Monitoring; Environmental Data Science; Internship; Capstone Class; Honors Thesis; Optional; Core Subject Matter Subtotal
Preparatory Subject Matter2 required · verify with the official sheet
Biological Science; Chemistry; Choose the 002 series or 004 series and 008 series:; OR; AND; Mathematics; Choose the MAT 017 series, the MAT 021 series, or STA 100 :; OR; OR; Physics; Preparatory Subject Matter Subtotal
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Global Disease Biology; Science & Society; Biological Sciences; choose a series:; OR; Chemistry; AND; Choose a series:; Physics; Calculus; Preparatory Subject Matter Subtotal
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Psychology; Statistics; Research Methods; Biology; choose an option:; OR, if prerequisites are met, choose:; Recommended, not required:; Preparatory Subject Matter Subtotal
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Preparatory Subject Matter2 required · verify with the official sheet
Biological Science; Chemistry; Choose the 002 or 004 series:; OR; Choose the 008 series or 118 series or 128 series & 129A-B:; OR; OR; Mathematics; Choose the 017 or 021 series:; OR; Physics; Choose the 007 or 009 series:; OR; Preparatory Subject Matter Subtotal
Preparatory Subject Matter2 required · verify with the official sheet
Biological Science; Chemistry; Choose CHE 002 series or CHE 004 series:; OR; Choose CHE 008 series or CHE 118 series or CHE 128 series & CHE 129A - CHE 129B :; OR; OR; Mathematics; Choose MAT 017 series or MAT 021 series:; OR; Physics; Choose PHY 007 series or PHY 009 series:; OR; Preparatory Subject Matter Subtotal
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Biological Science; Chemistry; Choose the 002 series or 004 series:; OR; 008 series:; Recommended; OR; Preparatory Subject Matter Subtotal
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Preparatory Subject Matter; Biological Sciences; Chemistry; OR; AND; OR; Mathematics; OR; Physics; Preparatory Subject Matter Subtotal; Depth Subject Matter; Statistics; Genetics; Biochemistry, Bioenergetics, & Metabolism; Cell Biology; Systems Biology; Biomolecular Systems Engineering; Systems & Synthetic Biology; Molecular & Cellular Biology; Restricted Electives; Choose at least 6 additional un
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Animal Biology; Biological Science; OR; Chemistry; Choose a series:; Mathematics; choose a series:; Physics; Preparatory Subject Matter Subtotal
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Biological Science; Chemistry; Choose the 002 or 004 series:; Choose the 008 or 118 series:; Mathematics; Choose the 017 or 021 series:; Physics; Choose the 001 or 007 series:; Recommended; Chemistry; Mathematics; Preparatory Subject Matter Subtotal
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Mathematics; Computer Science Engineering; Laboratory Science; Choose three:; Preparatory Subject Matter Subtotal
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Upper-level clusters, grouped by the gateway that opens them.
The deepest prerequisite chains in BIO. These are the routes that take the most semesters to climb.
3 courses deep, ending at BIO 002L
3 courses deep, ending at BIO 003
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Biological Science; Areas of Study; Choose additional upper division restricted electives in biological science relevant to the student's interest. Chosen in consultation with a BASC advisor to achieve a total of 35 or more units.; Include at least one course from each of the areas of study below.; (1) Biodiversity; (2) Advanced Evolution & Ecology; Depth Subject Matter Subtotal
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Depth Subject Matter2 required · verify with the official sheet
Biological Sciences; Biochemistry; Evolution & Ecology; Microbiology; Pathology, Microbiology & Immunology; Medicine & Epidemiology; Global Disease Biology; Pathogen/Disease Courses; choose two:; Depth Subject Matter Subtotal
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Depth Subject Matter2 required · verify with the official sheet
Choose two courses each from two of the following Core Groups and one course each from the remaining two Core Groups. Total upper division units should equal at least 40 units between core group courses and major elective courses.; Core Group A: Perception, Cognition, & Cognitive Neuroscience; Core Group B: Psychobiology; Core Group C: Social/Personality; Core Group D: Developmental; Depth Subject
Approved Major Electives2 required · verify with the official sheet
Additional units to achieve a total of 40 units of approved upper division major elective coursework. Each course may only be used to satisfy one Psychology major requirement; the same course cannot be used for multiple Psychology major requirements.; Approved Psychology Electives; Any upper division Psychology (PSC) course(s), except PSC 197T, including:; Any course listed in the Core Groups abov
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Biological Science; Statistics; Choose STA 100 or 130A & 130B:; Molecular & Cellular Biology; Choose two:; Restricted Electives; Choose at least 10 units:; OR; Upper division courses (unless otherwise noted) in biochemistry and molecular biology/cell biology or other fields relevant to a student’s interest chosen in consultation with the Cell Biology major advisor and BASC advisor.; No more than 4
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Depth Subject Matterchoose 1
Biological Science; Molecular & Cellular Biology; Choose STA 100 or STA 130A & STA 130B :; Restricted Electives; Choose at least 9 additional units:; OR; Upper division courses (unless otherwise noted) in genetics and genomics or other fields relevant to a student’s interest chosen in consultation with the Genetics & Genomics faculty major advisor and BASC advisor.; No more than 4 units of variabl
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Depth Subject Matter2 required · verify with the official sheet
Biological Science; Plant Biology; Restricted Electives; Choose additional upper division units in Plant Biology or related natural science courses from elective list via Plant Biology Bachelors of Science. Courses in other departments may be allowed upon prior consultation with a PLB faculty advisor.; Plant Biology Bachelors of Science Electives list; Recommended; Depth Subject Matter Subtotal
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Animal Biology; Biological Science; Choose a series:; OR; Evolution & Ecology; Depth Subject Matter Subtotal
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Restricted Electives1 required · verify with the official sheet
Focused specialty upper division courses as outlined in the student's major proposal (from ABI 187 ) with approval of an advisor.; Restricted Electives Subtotal
Depth Subject Matterchoose 1
Biological Science; Statistics; Evolution; Ecology; Microbiology; Animal Physiology, Behavior or Development; Plant Physiology or Development:; Laboratory Requirement; Choose course(s) for a minimum total of six hours/week of laboratory or field work from the list of courses below:; Choose two with three hours lab or field work/week:; Other courses with approval of the faculty advisor.; Other cour
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Depth Subject Matterchoose 1
Computer Science Engineering
Upper Division Composition Requirementchoose 1
Passing the Upper Division Composition Exam.; Computer Science Electives; Choose a minimum of seven courses, including at least one Mathematics (MAT) or Statistics (STA) course. A minimum of four electives must be (ECS) courses:; No course can count as both a required course and a Computer Science elective.; Depth Subject Matter Subtotal
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OR; OR; Physics; Preparatory Subject Matter Subtotal
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Depth Subject Matterchoose 1
General Entomology; Biological Science; Evolution & Ecology; Choose BIS 105 or a series:; OR; OR; Choose at least 3 units:; Depth Subject Matter Subtotal
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All BIO courses in the UC Davis catalog
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