MCD Biology Undergraduate Advising

Welcome to Molecular, Cell & Developmental (MCD) Biology Undergraduate Advising!

Click one of the links below to be directed to that page:

Important Announcements

Fall 2024 Enrollment Information

Fall 2024 Frist Pass and Second Pass

  • First Pass Appointments for Continuing Students: Tuesday, May 21st - Friday, May 24th, 2024
  • Second Pass Appointments and Waitlist for Continuing Students: Wednesday, May 29th - Monday, June 3rd, 2024
    • Continuing Students Open Enrollment: June 3rd to August 2nd, 2024If the course has open seats, students can enroll via their MyUCSC 
      • NOTE: Continuing student enrollment will close at 11:59pm on August 2nd, 2024 to allow incoming students the opportunity to enroll
  • New Student Enrollment
    • Fall 2024 Frosh Enrollment begins Monday, August 12th - Friday, August 16th, 2024
    • Fall 2024 Transfer Enrollment begins Monday, August 19th - Thursday, August 22nd, 2024
  • All Student Enrollment
    • Enrollment opens for All students restarts on August 26th, 2024

Helpful Enrollment Links

MCD Biology's Comprehensive Requirement/DC Labs

Due to extremely limited space, the Comprehensive Requirement/DC labs (BIOL 129L and BIOL 115L) are “closed” and will show “0 of XX Enrollment” during First Pass - Be sure you add yourself to the waitlist for the class during Second Pass. MCD Biology Undergraduate Advising will be monitoring the waitlists for BIOL 129L and BIOL 115L - Be sure you are checking your email account for updates regarding enrollment in one of the labs.

If you are in the Santa Cruz area during Summer, check out the Summer Session website and course offerings (be sure to change the search term to Summer 2024) - MCD Biology is offering some Core upper division courses this summer as well as 2 DC Lab courses!

Full/Closed Class - What Should I Do?

Always prioritize qualification courses or the Upper Division Core Courses (BIOL 100BIOL 101, or BIOL 105) during first pass enrollment. We usually hold some seats in courses until after second pass enrollment, so don’t assume that a class is full or closed just because it has a waitlist.

The ONLY WAY to request a seat in a course that is FULL is to get on a waitlist during second pass enrollment. A spot on the waitlist does not guarantee a spot in the class, so make sure you have a back up plan. 

If you are not able to enroll or waitlist during your Second Pass enrollment appointmentsit may be because:

  1. You are missing a prerequisite
  2. You have an enrollment hold (check your portal for details)
  3. You have exceeded the number of units you are allowed to enroll in or waitlist

If you were unable to waitlist or add a class from your portal, you can complete the Enrollment Request Sign In Sheet for Fall 2024 about 2 weeks before the First Day of InstructionThursday, September 12th, 2024 at 8am!

*Note: The Enrollment Request Sign In Sheet does not override holds or prerequisites. 

The reason we are waiting until a couple of weeks before the first day of class to open the form is because many enrollment problems/challenges that students are encountering right now will be resolved well in advance of the first day of class or they may decide that they are no longer interested in taking the class.


Fall 2024 Enrollment Guide

The MCD Biology Departments Undergraduate Enrollment Guide has been posted to our Enrollment Webpage as well as sent out to students via Slug Success Message. 

Please check out our Enrollment Guide for MCD Biology Department specific information regarding Fall 2024 Enrollment.

Spring 2024 Quarter Newsletter

Please see our Spring 2024 Quarter Advisng Newsletter at the link below:

MCD Biology Undergraduate Advising Spring 2024 Newsletter


Important Dates for Spring 2024

Important Dates to note for Spring 2024 (Most dates on the Registrar's Academic and Administrative Calendar):

  • March 15th, 2024: Spring 2024 Open Enrollment
    • Credit limit: 19 units 
  • March 25th, 2024: Minimum Credit Limit Enforced (12 units for Undergraduate Students)
  • April 1st, 2024: Instruction Begins for the Spring 2024 quarter
    • Deadines:Withdraw from the quarter and receive full registration fees refund
  • April 3rd, 2024: Undergraduate Enrollment Deadline (Must be enrolled in at least 1 course)
  • April 10th, 2024: Permission Number Required to Enroll in any class
  • April 19th, 2024: ADD/DROP/SWAP Deadline
    • Undergraduate Part-Time Program Deadline
  • April 19th, 2024: MCD Biology Spring 2024 Appeal Deadline
  • April 20th, 2024: Late Add by Permission Begins ($10 fee)
  • April 26th, 2024: Declaration Deadline
    • Deadline for Fall 2022 Frosh Students
  • June 10th to June 13th, 2024: Finals Week
  • June 18th, 2024: Spring 2024 Grades Due from Faculty  

MCD Biology Student Opportunities Email Google Group

Join our Student Opportunities Email Google Group: MCDB FWD Opportunities!

NOTE: You will need to be logged into your UCSC email account.

This email list will be forwarded opportunities shared with MCD Biology Advising from: other departments at UCSC, California state graduate schools, job, scholarship, research, training, volunteer & internship opportunities. You can unsubscribe at any time.


How to Access MCD Biology Advising

Please see our How to Contact MCD Biology Advising page for more information on MCD Biology Undergraduate Advising options.

Know what type of advising you are looking for? Check out the specific advising pages below for availability:


MCD Biology Staff
MCD Biology Advisors:





MCD Biology Faculty Advisor:

John Tamkun
MCD Biology Curriculum Chair:

John Tamkun

MCD Biology Department Chair:

William Sullivan

MCD Biology Department Manager:

Teel Lopez