1What is a blood group? On what basis is human blood divided into different groups?
2Which antigens are found in blood of groups A, B, AB and O?
3What is the Rh factor? How does it make a blood group positive or negative?
4Which antigens are present in A+ve blood and in O-ve blood?
5Why should the blood group be confirmed before a blood transfusion?
6In a blood group test, the A and D drops turn grainy but the B drop stays smooth. What is the person's blood group? Give the reason.
7Which blood group is the most common in the world? Which of antigens A and B does it carry?
8Why do children of the same parents often have the same blood group?
9How many blood groups are there when the Rh factor is included? Name them all.