I'm year 13 doing a level bio chem maths and I want to apply for med during my gap year. If I got As on Bio and Chem, but not so well on maths, can I either resit it, or do another A Level subject and apply with actual Bio chem grades and a predicted A level grade for another subject exam I would sit in 2024? My preferred universities are UoB, then Aston or Birmingham City uni. I'd like to stay in Birmingham