3 programs, side by side

+ Add a program	McMaster Life Sciences Gateway OUAC MLS ☆ Add to planRemove	Western Science OUAC ES ☆ Add to planRemove	Guelph Bachelor of Science (BSc) General OUAC GZG ☆ Add to planRemove
Your average, their wayrequired courses forced in
Published rangetheir exact wording	93–97%“Mid-90s”	80–87%“Low to mid 80s”	80–85%“80 to 85%”
Required coursesforced into your top 6 — options are the row below	ENG4USBI4U	ENG4UMCV4U	ENG4U
Choose one ofany of these satisfies it	one of MCV4U, MHF4U one of MCV4U, MHF4U, SCH4U, SPH4U	two of ICS4U, MDM4U, MHF4U, SBI4U, SES4U, SPH4U	—
Prerequisitesas published	English 4U 1 of Advanced Functions 4U, Calculus & Vectors 4U Biology 4U 1 of Advanced Functions 4U, Calculus & Vectors 4U, Chemistry 4U, Physics 4U Applicants without Calculus & Vectors 4U will be required to take an equivalent Calculus course in Level I.	English, ENG4U Calculus and Vectors MCV4U Two of: Advanced Functions, MHF4U Biology, SBI4U +7 more on the program page	Biological Sciences: ENG4U MHF4U 2 4U Science courses 2 additional 4U/M courses +5 more on the program page
More than marks?supplementary application	Marks only	Yes Unless otherwise noted, required courses must be completed with a minimum average of 70%. Western Integrated Science applicants must submit a supplementary application. More information Usually closes before January 15	Marks only
Co-op	Available	Available	No
Degree	—	—	—
First-year intakewhere published	1,000	550	—
What you study	Animal ScienceBiological SciencesGeneticsMicrobiology	Animal ScienceAstronomyBiological SciencesChemistry	Animal ScienceBiological SciencesBiotechnologyChemistry
What it is	Life Sciences Gateway is a first-year program where you explore core sciences—biology, chemistry, and math—before specializing in areas like genetics, microbiology, pharmacology, animal science, or psychology. It includes mandatory co-op work terms alongside your studies. This broad entry lets you test different life science directions before committing to a specific degree, rather than applying directly to a single specialized program.	This is a broad science degree where you choose from fields like biology, chemistry, physics, computer science, geology, and others. You take foundational science courses in first year, then specialize by selecting which science subjects to focus on. Co-op is available, letting you do paid work terms at science-related employers alongside your studies.	A Bachelor of Science (General) lets you study science broadly across biology, chemistry, environmental science, and related fields, choosing your own mix of courses rather than specializing deeply in one area. Unlike an honours program, it gives you flexibility to explore multiple sciences without committing to a single major or meeting the tighter requirements of a specialized stream. This suits students who are curious about science in general but aren't yet sure which direction appeals to them most.
The door tomajors you reach through it	biochemistrybiologylife sciencesmedical sciencesmicrobiologyneuroscience	biologychemistryearth scienceenvironmental sciencelife sciencesmathematicsphysicsstatistics	Applied to directly
Entrance awardsat this campus, by average	5 published, 3 with no applicationfrom 75%See them	6 published, 5 with no applicationfrom 85%See them	12 published, 4 with no applicationfrom 75%See them
Source	McMaster University on OUInfo	Western University on OUInfo	University of Guelph on OUInfo

Ranges are what each university publishes, not guaranteed cutoffs, and limited-enrolment programs often admit above them. Confirm anything you are about to act on with the university; each column links to its source.