This is a limited enrolment program. Students must have completed 4.0 credits and meet the requirements listed below to enrol.

Variable Minimum Grade and Variable Minimum Grade Average
Minimum grades combined with a minimum grade average in required courses or their equivalents are needed for entry, and these minimums change each year depending on available spaces and the number of applicants. The following courses must be completed:

• BIO120H1, BIO130H1
• ( CHM135H1, CHM136H1)/ CHM151Y1
• ( MAT130H1/​ MAT135H1, MAT136H1)/ ( MAT148H1, MAT149H1/​ MAT137Y1)/ ( MAT158H1, MAT159H1/​ MAT157Y1)

To ensure that students admitted to the program will be successful, applicants with a final grade lower than 60% in each course, or a grade average lower than 70% in these required courses will not be considered for admission. Please note that obtaining the minimum final grades and grade average does not guarantee admission to the program. While it is difficult to predict what will be competitive course marks and average in a given year, based on previous years, the estimate is: course marks = mid 70s; average = mid 70s. The underlying numeric final mark in each of your courses required for program enrolment will be used by the relevant academic unit to determine your eligibility.

Applications from students lacking numerical grades in one or more of the specified prerequisites, or students applying in their second or later years, may be considered on the basis of their entire academic record and the availability of space in the program. In addition to applying through ACORN, students applying in their second year or later are asked to please contact the department directly at studentservices.mogen@utoronto.ca, specify which program you would like to be considered for, and provide your student number.

Please consult the Arts & Science Program Toolkit for more information on program enrolment. Additional information is also available by contacting the Undergraduate Coordinator.

Students in this program have the option to request enrolment in the Arts & Science Internship Program (ASIP) stream. Students can apply for the ASIP stream after Year 1 (Year 2 entry) or after Year 2 (Year 3 entry, starting Fall 2027). Full details about ASIP, including student eligibility, selection and enrolment, are available in the ASIP section of the Arts & Science Academic Calendar. Please note that the majority of students enter ASIP in Fall term of Year 2. Space is more limited for Year 3 entry. Students applying for Year 3 entry must have been admitted to the Molecular Genetics and Microbiology Major program in the Summer after Year 2.