Getting in with two is still a long shot rather than an impossibility (at some colleges at least):(Original post by Chief Wiggum)
Biology, Chemistry, and Psychology to A2 is absolutely fine.
Cambridge requires it, rather than preferring it.SourceAS and A Levels
Applicants must have AS or A Level passes in Chemistry and two of Biology/Human Biology, Physics, Mathematics. At least one pass must be at A Level.
Most applicants for Medicine at Cambridge have at least three science/mathematics A Levels and some Colleges require this and/or ask for particular A Level subject(s). See individual College websites for details.
Although some Colleges consider applicants offering only two science/mathematics subjects at A Level, please note that the success rate of such applicants is much lower. In the past three admissions rounds, 98 per cent of applicants for Medicine (A100) offered three or more science/mathematics A Levels and, of these, 23 per cent were successful in obtaining a place. Of the two per cent of applicants who offered only two science/mathematics A Levels, just 10 per cent were successful in gaining a place.
... and the ones that won't