The most popularly known blood grouping is th | vedclass

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(D) Karl Landsteiner classified human blood into four groups based on the presence or absence of specific antigens on the surface of $RBCs$.In blood g

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No antigens $A$ and $B$ on $RBCs$

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(D) Karl Landsteiner classified human blood into four groups based on the presence or absence of specific antigens on the surface of $RBCs$.In blood group $A$,antigen $A$ is present.In blood group $B$,antigen $B$ is present.In blood group $AB$,both antigens $A$ and $B$ are present.In blood group $O$,neither antigen $A$ nor antigen $B$ is present on the surface of $RBCs$. The term '$O$' signifies the absence of these antigens,which is why it is not called '$C$'.Therefore,individuals with blood group $O$ are considered universal donors.

The most popularly known blood grouping is the $ABO$ grouping. It is named $ABO$ and not $ABC$,because '$O$' in it refers to having

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