AP BIOLOGY

THE HUMAN IMMUNE SYSTEM

BLOOD GROUPS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following statements is true about the ABO blood system?
A
It was discovered in the 1950’s.
B
It was discovered by Karl Landsteiner
C
Few people are actually typed for this system because of the difficulty of the procedure and high cost
D
a and b
Explanation: 

Detailed explanation-1: -Which of the following statements is true regarding the ABO blood system? People who have the A antigen normally would not produce the anti-A antibody. People who are type AB normally produce both anti-A and anti-B antibodies. The only ABO type blood that normally does not have either A or B antigens is AB.

Detailed explanation-2: -Answer and Explanation: The correct answer is 1. People who have the A antigen normally would not produce the anti-A antibody.

Detailed explanation-3: -It’s the universal donor. Group AB can donate to other AB’s but can receive from all others. Group B can donate red blood cells to B’s and AB’s.

Detailed explanation-4: -Group AB individuals have neither anti-A nor anti-B antibodies in their plasma. Group AB plasma can therefore be given to patients of any ABO blood group and is often referred to as the universal plasma donor.

There is 1 question to complete.