Carbohydrate in ABO blood group antigens is ?
Correct Answer: Frucose
Description: Ans. is 'b' i.e., FrucoseABO antigens are glycoproteins, i.e. saccharides (carbohydrates) linked with polypeptides.There are four main groups :i) Blood group A : Containing A antigenii) Blood group B : Containing B antigeniii) Blood group AB : Containing both 'A' and 'EV antigeniv) Blood group 0 : No ABO antigen'A' and 'EV antigens are derived from H-antigen. H-antigen is formed by adding fucose to terminal galactose of backbone strucuture. The addition of N-acetyl-D-galactosamine or D-galactose to the galactose residue of H-antigen confers 'A' or 'B' antigen, respectively.
Category:
Biochemistry
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