What is the full form of $PMNL$?

Which of the following are erythropoietic organs?
$I$. Liver
$II$. Lymph node
$III$. Spleen
$IV$. White bone marrow
$V$. Red bone marrow
Choose the correct option.

Granulocytes and agranulocytes are the two main categories of

Persons with $AB$ blood group can accept blood from persons of ........... blood group and the antibody in their blood plasma is.......

Prothrombin is a

If the mother has blood group $A$ and the father has blood group $AB$,which of the following blood groups cannot be present in their child?