Bi 253 Principles of Biology

General Information

The third (and most wonderful!) part of the introductory biology sequence for Biology majors.

Principles of Biology is split into two lecture courses. They share the same labs. You must enroll for a lab section and either the night or day lecture sections.

Once you pick a lecture and lab section, you must stick with your choices. The lecture instructor, exams, scoring and grading for the night section are completely separate from the day section.

The text is available in the bookstore: Freeman, Biological Science, 3rd Edition.

The day lecture section:
    meets Monday, Wednesday and Friday from 11:30 AM to 12:35 PM in Hoffman Hall.
    The instructor is Randy Zelick, 332 Science Building II, email

      Dr. Zelick's office hours are from 3:30 to 5:30 PM on Wednesdays, or by appointment.

The night lecture section:
      The night section is taught by Dr. Mandy Cook. Office hours for night section students will be in room 329 Science Building 2, on Wednesday from 10:00 to 11:00 AM. You may email Dr. Cook at email

HELP -- THE COMPUTER WON'T LET ME IN TO THE LAB SECTION I NEED....
Here's what you do: Go to the lab you want and see if there are no-show students. Usually this is true. The TAs will wait for 30 minutes after the start of lab. If a student on their computer roster does not appear by then, the TAs are authorized to give away that slot.