The Graduate School Advance to a Higher Degree

Biological Sciences

Supported Degree Objectives

  • Doctor of Philosophy (PhD)
  • Master's Degree
  • Non Degree

Required Supporting Documents

  • Transcripts
  • Recommendation Letters
  • Statement of Purpose
  • Writing Sample
    • You may submit a research paper from a class or PDF of a publication. The faculty would like to view your writing skills.
  • Graduate Record Examination (GRE)
    • Domestic Minumum Analytical Writing Required Score:
      • Thesis-Master's: 3.5
      • PhD: 3.5
    • International Minimum Analytical Writing Required Score:
      • Thesis-Master's: 4.5
      • PhD: 3.5
  • English Proficiency (Non-native English speaking international applicants: choose a test below)
    • TOEFL: Internet-Based Test (IBT): Minimum Overall Required Score: 107
      • Minimum section requirements:
        • Reading: 22
        • Listening: 22
        • Speaking: 26
        • Writing: 24
    • TOEFL: Paper-Delivered Test: Minimum Overall Required Score: No minimum
      • Minimum section requirements:
        • Reading: 19
        • Listening: 14
        • Writing: 18
    • IELTS (Academic Module): Minimum Overall Required Score: 7.5
      • Minimum section requirements:
        • Reading: 6.5
        • Listening: 6.0
        • Speaking: 6.0
        • Writing: 5.5

Doctoral and Thesis-Master's Degree Program Requirements

  • Cumulative Grade Point Average from most recently conferred undergraduate, graduate, or professional degree:
    • 3.0 or equivalent (A=4.0)

Application Deadlines

  • Fall Spring Summer
    December 7 No Entry No Entry

Program Contact Information

Additional Information

  • Current master's students wishing to move to a doctoral degree program in this same graduate program will not be required to submit a new application.
  • When applying, you should apply for your ultimate degree goal. A Master's is not needed to apply to the Ph.D. program UNLESS the Bachelor's degree earned was a three-year program. If that is the case, the applicant must have completed or be in the final year of a two-year MS program when applying. The MS degree must be completed before classes would begin here in August of the year for which you are applying.

Ernest C. Young Hall, Room 170 | 155  S. Grant Street, West Lafayette, IN 47907-2114 | 765-494-2600

© 2017 Purdue University | An equal access/equal opportunity university | Copyright Complaints | Maintained by The Purdue University Graduate School

If you have trouble accessing this page because of a disability, please contact The Purdue University Graduate School.