There is Maths involved, trust me, I hate maths too (had a B at GCSE Maths). Maths is a part of A Level Biology that I have struggled with but there has always been extra support at my college for those doing similar subjects who aren't so good with the maths side.
Maths questions do seem to come up on exams, some of which you will need to remember the formula for and in particular Maths seems to come up on practical exams. Biology isn't as Maths based as something like Physics is though (where they usually recommend that you do A Level maths alongside A Level Physics, at least they did in my college, and it's the reason I didn't choose to study it). So if you want to do it just be prepared that the occasional maths question will come up, though it's not that often in my opinion and of course you usually get marks for the workings anyway even if you don't always get the right answer.
The maths side of Biology certainly shouldn't hold you back from doing it though if it's a subject that you will enjoy!