Who has managed to get full marks on the A level biology papers without doing the practical's and thus got an A*?
As for getting an A, you have a total UMS of 420, and not doing coursework would limit you to 320 - 320/420 is 76.2%, so a B. I think that if you did no practical for it you would be limited to at maximum a B.
Though I am tired and I may be misreading it.
Oh right bless, Im so sorry I forgot to mention my question was in relation to the OCR exam board
Looked up the OCR Biology boundaries, and I believe that you have it split 90 150 60 - so getting 0 on the Practical would get you 240/300 - about 80% which is just about an A. Same at A2, so assuming you got full marks on all 4 exams you could just scrape an A (480/600).