Red Cell Antigens

15 Points Per Correct Answer - No time limit  

1. What is the A1 antigen? D-galactose N-acetyl-D-galactosamine Acetylcholinesterase Glycophorin A

2. What is the structure forming the antigen(s) of the Indian blood group system? Kell glycoprotein CD44 Kidd glycoprotein Unknown

3. After the ABO blood group system, what is the second most clinically significant antigen system? Lewis blood group system Rh blood group system Colton blood group system Kell blood group system

4. What is the antigen missing in persons with the Bombay phenotype? B antigen I antigen H antigen A antigen

5. Which two red cell antigens are not formed as part of the red cell membrane? Lutheran and Colton antigens Lewis and Chido/Rodgers antigens Gerbich and Cromer antigens Knops and Dombrock antigens

6. What is an ABO blood group subtype? A mutation Non-existent An arbitrary designation for different countries A variant form of a known antigen

7. Where did the name of the name of the Duffy blood group system come from? The surname of the person who discovered the antigens The first name of the first person to show antibodies to the antigens The first name of the person who discovered the antigens The surname of the first person to show antibodies to the antigens

8. What is one mechanism for the acquired B phenotype? Drug therapy There is no such thing as an acquired B phenotype Mutational change in proportion to age Modification of the A antigen to form a B antigen by bacterial enzymes

9. Which red cell antigen is the receptor for the malarial parasite Plasmodium vivax? Kidd Diego Lutheran Duffy

10. Which red cell antigen is missing or shows very weak expression in McLeod syndrome? Kell antigen Kidd antigen Diego antigen Scianna antigen