Effect of AS results in uni applications?

I got my results today, they were good, but in the opposite subjects I needed/expected.

My results were:

Maths A, Human Biology A, Chemistry B, Physics B.

I want to go to one of the better universities and study Chemistry (eg. York or Bath)
Though these require an A in Chemistry at A2 (Which I can easily get)
will I still be offered a conditional with my B as it is now? I have the entry requirements to get in, just in the wrong subjects.

Also, I'll be dropping human biology next year as I don't really enjoy it.