It will depend on the course you are doing. Some courses require you to complete all subjects before going on to the next year. So if certain subjects are a prerequisites for 2nd year or 3rd etc you will need to do that subject before you can do any of the 2nd or 3rd year etc subject. However...
Does anyone know when physiology or pharmacology results will be out. Both these exams were multiple choice, cant possibly take that long to get results back for computer marked exams.