After BIOL 121N
Gateway: BIOL 121N
Building the department map…
Department paths
Courses with no prerequisites inside the department that unlock the most downstream work.
Each of these unlocks the largest share of downstream work on this map. Courses from other departments can appear here when they genuinely gate BIOL coursework.
Generated from Old Dominion University’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
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 BIOL 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 165 BIOL and feeder courses that have prerequisite links. 136 more BIOL courses have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
The concentrations and majors that build on BIOL, and how their requirements are structured. Expand a program to see which courses satisfy each group, then plan it in the Planner.
Biology Upper-Division Required Courses (C or better required in each course)all required
Writing Intensive Requirement1 required
Choose a Writing Intensive (W) course from the following Upper-Division Biology Electives or BIOL 405W , which requires the approval of topic/sponsor or a biomedical-specific course section. BIOL 405W will NOT count towards the upper-division Biology electives.
Upper-Division Biology Elective Courseschoose 1
Students must choose 16 elective credit hours from the following Biology elective courses. At least one of the courses must be BIOL 416 , BIOL 440 , BIOL 454 , or BIOL 476 . Two laboratory-based courses (**) are required in the 16 elective credit hours. Students must pass all Biology electives with a C or better (P=Passing for courses graded Pass/Fail).; Select from the following to complete t
Experiential Learning2 required · verify with the official sheet
A maximum of 6 credits can be applied toward Upper-Division Biology credit hours. These courses require documented prior approval.
Non-Biology Degree Requirements (C or better required in each course.)2 required · verify with the official sheet
One Health1 required
One Health Majorchoose 1
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Required Biology Core Courses (C or better required in each course)choose 1
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Required Biology Core Courses (C or better required in each course)2 required · verify with the official sheet
Upon completion of the above sequences, students must complete the following core courses, some of which are prerequisites or corequisites for upper-level biology courses (see course descriptions for individual courses):
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Upper-level clusters, grouped by the gateway that opens them.
The deepest prerequisite chains in BIOL. These are the routes that take the most semesters to climb.
7 courses deep, ending at BIOL 479
7 courses deep, ending at BIOL 750
6 courses deep, ending at BIOL 322
6 courses deep, ending at BIOL 351
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Upper-Division Biology Elective Courses2 required · verify with the official sheet
Students must choose at least 16 elective hours from the following courses. Two of the elective courses must have a laboratory/field component. Students must pass all Biology electives with a C (2.0) or better (P=Passing for courses graded Pass/Fail).
Experiential Learning2 required · verify with the official sheet
A maximum of 6 credits can be applied toward Upper Division Biology Electives. All experiences must be One Health-related experiences. Documented prior approval is required. A passing grade (P) is required.
1 course from1 required
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Environmental Health Major2 required · verify with the official sheet
ENVH Electives- Select 12 credits of the following:; Elective credit may be needed to meet the minimum requirement of 120 credit hours
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All BIOL courses in the Old Dominion catalog
Grade medians are for verified students. Sign in with your school email to see them.
Use your school emailNo section schedule with instructor names for BIOL yet.
No clubs or organizations on record under BIOL yet.
This shows once five students share their club memberships.
Biology does not run a page here yet. When it does, its events show up here and on the Old Dominion campus feed.