Principles of Biology I Laboratory Credit Hours: 1 hour. Level: Undergraduate Introduction to skills, methods, and tools used for biological research concentrating on cellular and molecular approaches. 2 hours lab per week. Corequisites: BIOL 1107 or BIOL 1107E or BIOL 2107H Duplicate Credit: Not open to students with credit in BIOL 2107L Semester Offered: Fall Spring Course Type: Lab (L)