Serum is

If a person is injured and requires a blood transfusion,but the blood group of the patient is not checked,which of the following blood groups can be safely administered?

Which cells are known as the 'macropolice' of the blood?

Decrease and increase in the number of RBCs is respectively termed as

After checking the blood groups of a husband and wife, a doctor advised them not to have more than one child. Which of the following could be the blood group combination of the couple?

Prothrombin is a