The most well-known blood grouping system is the $ABO$ system. It is named $ABO$ and not $ABC$ because the $\text{O}$ in it refers to having:

  • A
    No antigens $A$ and $B$ on $RBCs$
  • B
    Other antigens than $A$ and $B$ on $RBCs$
  • C
    Overdominance of $A$ and $B$ type genes
  • D
    Only one antibody - anti-$A$ or anti-$B$ on $RBCs$

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Similar Questions

Arrange the following formed elements in the decreasing order of their abundance in blood in humans :
$(a)$ Platelets
$(b)$ Neutrophils
$(c)$ Erythrocytes
$(d)$ Eosinophils
$(e)$ Monocytes
Choose the most appropriate answer from the options given below :

Which of the following blood groups' person cannot donate blood to others?

In a normal healthy person,if the total number of $WBCs$ is about $9000 / mm^3$,then the number of Agranulocytes is about . . . . . . $/ mm^3$ of blood.

$A$ drop of each of the following is placed on four separate slides. Which one will not coagulate?

If a child has blood group $O$ and the mother has blood group $A$,which blood group cannot be the father's?

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