Transcript evaluation process

Does anyone know if McGill re-weighs grades to their own system or in some other way evaluates grades differently if they are at different levels? For instance, would a B in honors Chemistry have more merit/weight/significance than a B in college-prep Chemistry? I know many schools reweigh grades against their own rubric and I’m just curious if McGill does this too. Merci.

My understanding from admissions last year is they do not.

Thanks!