if i want to go in the field of research in biology which subjects can i do ??

whould i have to bsc; msc ; phd in the particular subject that i want to do??

You can go for research by choosing any subject like zoology, botany, microbiology, biochemistry, neuroscience, biotechnology in your B.Sc and M.sc.

First you have to complete your B.Sc and M.sc in any particular subject and then you can choose any particular topic for your research, when you finally complete your research, you will be awarded with PhD degree.