THE HUMAN IMMUNE SYSTEM
BLOOD GROUPS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
3
|
|
|
2
|
|
|
1
|
|
|
0
|
Detailed explanation-1: -blood group A – has A antigens on the red blood cells with anti-B antibodies in the plasma. blood group B – has B antigens with anti-A antibodies in the plasma. blood group O – has no antigens, but both anti-A and anti-B antibodies in the plasma. blood group AB – has both A and B antigens, but no antibodies.
Detailed explanation-2: -There are currently 43 recognised blood group systems containing 349 red cell antigens (September 2022). The 43 systems are genetically determined by 48 genes.
Detailed explanation-3: -At present, 33 blood group systems representing over 300 antigens are listed by the International Society of Blood Transfusion.
Detailed explanation-4: -A type blood has only A antigens on red blood cells. B type blood has only B antigens on red blood cells. AB has both A and B antigens on red blood cells. O has neither A nor B antigens on red blood cells.
Detailed explanation-5: -Both the A and B antigens. You have type AB blood. Your plasma does not have antibodies against type A or type B blood. About 5% of people (5 in 100) in the U.S. have type AB blood, with 1% having AB-negative (AB-) blood and 4% having AB-positive (AB+) blood.