1. What are antigens?2. What are antibodies?
3. Name the 4 different bloodtypes.
4. Which bloodtype is an universal donor?
5. Which bloodtype is an universal acceptor?
6. We have the AB0 antigen system. Which antigen can also be present on the surface of red bloodcells?
7. If someone has bloodtype A, which antigens and antibodies are present in blood?