For a biology minor, students must complete all biology core requirements (22 hours), of which a minimum of 9 hours must be completed in residence at CU Denver. The minimum grade in each CU Denver course is C- (1.7); however, a GPA of 2.5 is required in biology courses taken at CU Denver to complete the minor. In addition, students must complete one year of general chemistry including laboratory with a grade of C- (1.7) or higher.