ABO Genetic Quiz

 Blood group antigens are sugars attached to the surface of red blood cell. Individuals inherit a gene that codes for a particular enzyme responsible for a specific sugar(s) to be added to the red cell. The type of sugar added determines the blood group.

 

 

ABO Genetic Quiz

See table 1: ABO blood group system
glycosyltransferease enzymes and immunodominant sugars

Antigen

Immunodominant sugar

 

Glcosyltransferase

(enzyme)

Gene

H

L-fucose

 

 L-fucosyl transferase

H

A

N-acetyl-D-galactosamine

 

N-acetylgalactosaminyltransferase

A

B

D-galactose

 

D- galactosyl transferase

B

 

Quiz Preview

What is the immunodominant sugar responsible for blood group H specificity?

L-fucose

What is the immunodominant sugar responsible for blood group A specificity?

N-acetyl-D-galactosamine

What is the immunodominant sugar responsible for blood group B specificity?

D-galactose

Which of the following ABO blood group has the most amount of H substance

Blood group O

Click to start ABO genetic quiz

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