How to Apply

We encourage you to apply online sing the Web service.

Why should I apply online?

Save time - it's convenient and easy

Built-in error checks prevent mistakes before submission

Avoid unnecessary postage delays - submit it with the click of a button

Receive instant confirmation of receipt

Pay fees online

Track supporting documents

Register recommenders

Easy communication tools

Sign up today for an account - it's FREE!

If you are unable to use the online feature, please call a staff member in the Graduate Studies Office at

626-395-6346 for additional instructions, or contact us using the online contact form.

Undergraduate Admissions website

Graduate Options for Microbiology

Application Requirements

Apply Online

Students interested in microbiology can pursue their interests through one of several graduate options:

Biochemistry and Molecular Biophysics



Chemical Engineering


Environmental Science and Engineering

Geological and Planetary Sciences

Applicants must have completed a bachelor's degree or the equivalent before beginning graduate study. Applicants who already possess a Ph.D. degree will generally not be considered for a second Ph.D. degree. Transcripts, GRE scores, letters of recommendation, and the applicant's statement of purpose are all required components of the application and are carefully weighed during the evaluation process. The admissions committee may also consider research papers, publications and other original work.

Application deadlines

Required tests

Letters of recommendation