There are a number of medicine courses. However, when you talk of medicine course without specifying, then it is widely known to be Bachelor of Medicine and Bachelor of Surgery. You do not qualify to do the course with B- in Biology.
Bachelor of Medicine and Bachelor of Surgery minimum subject requirements:
- Biology: B
- Chemistry: B
- Maths or Physics: B
- English or Kiswahili: B
You may want to consider Bachelor Of Science Clinical Medicine which you qualify in terms of subject requirements. Confirm whether you qualify interms of cluster points.