College of Science

Department of Biological Sciences


Graduate Web

Contact Grad Office

Department of Biological Sciences
915 W. State Street
West Lafayette, IN 47907
ph. (765) 494-4408
Fax (765) 494-0876

Graduate Studies

English Tests

  1. TOEFL

    The Test of English as a Foreign Language (TOEFL) score is required if the applicant’s native language is not English. The minimum score required by the Department of Biological Sciences for the TOEFL is higher than that required by the Graduate School.

    Paper-based test:   600            Computer-based test:  250

    Internet-based test:  Overall Total Score: 80
    With the following minimum section requirements:
    Reading: 19    Listening: 16
    Speaking: 22    Writing: 18

    Note that in addition to required minimum scores for writing, speaking, listening, and reading, the Department of Biological Sciences also requires a minimum overall score that is higher than the minimums for the four area tests combined. Applicants must meet or exceed each of the five scores (listed above) for admission to our graduate program.

    This department does NOT require a GRE Subject Test or the GRE Written Assessment Test. However, scores MUST BE SENT DIRECTLY to us (Purdue University) from ETS. Copies are not considered official.

    Official TOEFL web site

    TOEFL codes for this department:
    Institution: 1631
    Department : 35

    TSE
    The Test of Spoken English (TSE) is NOT required, but HIGHLY RECOMMENED for the applicant whose native language is not English and whose medium of instruction was not in English. The minimum acceptable score of 50 is required for a Teaching Assistantship to be awarded. However, a position in our graduate program is NOT guaranteed even if the TSE is taken and a minimum score of 50 or better is received. The applicant would also have to meet the academic standards of the department and be accepted by the Admissions Committee before admission is granted. official web site

    TSE codes for this department:
    Institution: 1631
    Department : 99

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