Courses involve some basic mathematics and you need not have any pre-requisite knowledge of biology at all. Whatever biology is necessary will be taught to you there and then. Most of the courses are easy to handle and the faculty makes it even easier (leaving a few of course). The field is growing by leaps and bounds and will definitely be able to keep anyone interested throughout, more if you like Biology.
As far as future prospects are concerned it is a very good and interesting branch if you are looking for some kind of research area but since last year not many core companies are coming for it. The fact that it is a 5 year course should not prevent you from opting for it if you have even the slightest of interest for it but if you are planning to study Management or work in Non-Core fields (the choice of many) then you need to spend one year extra.
By:
Kanika Khanna & Charu Mehta