Does McMaster University accept Biology HL?

💡Expert's Take

“McMaster lists IB Biology HL as potentially granting 6 units (BIOL 1A03 + 1M03), but the most important word in their policy is DISCRETIONARY.

The Reality: Unlike McGill or UBC, McMaster doesn't have a rigid equivalency table. They evaluate IB credits after you are admitted, and the Faculty of Science decides your fate case-by-case.

The 'Unspecified' Trap: Even if you get the units, you might not get the course.

Best Case: You get the specific BIOL 1A03 + 1M03 exemption.

The 'Empty' Credit: You may instead receive 'Level 1 Unspecified Science' credits. These count as electives, but they do not satisfy the prerequisites for Level II specializations (like Honours Bio or PNB).

The Lab Reality: Even when an exemption is granted, some advisors recommend retaking BIOL 1A03, especially if you are targeting competitive Level II programs.

Why? McMaster expects specific lab skills (micropipetting, formal safety protocols, report formats) that IB often doesn't cover. Skipping 1A03 can leave you at a real disadvantage in second-year research labs.

Strategic Tip: Do not build your schedule assuming you have these credits. Wait for your official Offer Letter. If you see 'Unspecified Credit,' email Science Academic Advising immediately to ask: 'Does this clear my Level II prerequisites?'

Verdict: Assume you are taking Biology 101 until you have a written exemption in hand. At McMaster, IB credits are real—but conditional.”