$Rh$ factor is concerned with:

If a daughter has blood group $O$ and the father has blood group $B$,what will be the genotype of the father?

Which of the following white blood cells are present in the maximum number?

In the $ABO$ blood grouping system,if both antigens are present but no antibodies are present,the blood group of the individual will be ...................

What is the average amount of hemoglobin present in $100 \ ml$ of blood?

$A$: Blood group phenotype is controlled by the presence or absence of antigens present on the surface coating of $RBC$.
$R$: These antigens are of three types and are found in the oligosaccharide-rich head regions of a glycophorin.