I feel that I have no more interest in Pure Biology .. but I am not sure that what courses in JC will be affected apart than Biology .. anyone out there knows ?
No interest in Bio then do drop it. JC Biology is mostly about memory work. The lack of interest may hurt you in the long term.
Do talk to your dean of academic studies in your college. They will help you along with regards to making your choice.
What is your interest? What do you want to do in future? ie. What field.
No harm dropping if you decide not to take Bio in JC, and especially since you have no interest.
But if you drop, do use the extra time wisely on your remaining subjects.
i have no interest in it(or my whole class...) we still went for the subject in the end....