Hello

After your 12th from biology field you have many options to choose.
1. If you have keen interest in human biology you can opt for being a doctor, physiotherapist, dentist, oncologist, and many more.
2. If you don’t find it useful you can pursue graduation in fields like botany, microbiology, life sciences, etc.
3. If you don’t find these two options of your kind you can also choose to serve as civil servant. You have to qualify exams like SSC, UPSC, etc.

4. You can even opt for research areas and be a scientist.
These are some options available to you after 12th.
All the best