A bachelor's degree from a college or university that grants degrees recognized by the University of Arizona.
A minimum cumulative grade point average (GPA) of 3.000 for the most recently completed 60 units of coursework.
Undergraduate courses in the basic sciences, however deficits in one area can be made up during the early phase of training if they are offset by strengths in other areas. Undergraduate coursework in the following is recommended:
2 semesters of coursework in the life sciences
2 semesters of inorganic chemistry with labs (biochemistry is strongly recommended)
1 semester of mathematics (preferably calculus)
2 semesters of physics with lab
Prior experience in a research laboratory is highly desirable althought not required.
International applicants must provide official English Profficency scores. To see the test options and minimum scores please refer to the Graduate College English Proficiency information

Note: The Graduate Record Examination (GRE) is no longer required for PhD admission.

Test of English as a Foreign Language(link is external) (TOEFL) - minimum score of 79 iBT (or 60 on the revised PBT with no section score lower than 15).

International English Language Testing System(link is external) (IELTS) - minimum composite score of 7, with no subject area below a 6