If a child has blood group $O$,which of the following blood groups cannot be possessed by the parents?

If a mother possesses only '$B$' antibodies (implying blood group '$A$') and the father has blood group '$O$',what will be the possible blood group$(s)$ of the child?

Which of the following is a blood protein?

A child of a mother with blood group $A$ and a father with blood group $AB$ may have any one of the following blood groups except

Select the correct statement/s regarding blood groups in human.
$i$. Some genetically determined blood group systems are $ABO$, $Rh$, $Duffy$, $Lewis$, $Bombay$ blood group etc.
$ii$. Three types of agglutinogens are present on surface of human $RBCs$ such as $A$, $B$ and $D$.
$iii$. Individuals with blood group "$AB$ $Rh$ $+ve$" have $A$, $B$ and $D$ antigens on the surface of their $RBCs$ and both antibodies 'a' and 'b' in their plasma.
$iv$. Haemolytic disease of Newborn occurs when mother with $Rh$ $-ve$ blood group conceives $Rh$ $-ve$ foetus.
$v$. Individuals with '$AB$' blood group are called universal donors while those with '$O$' blood group are called universal acceptors, with reference to blood transfusion.

Which of the following is an agranulocyte?