Blood group of mother and child are $B$ and $AB $ respectively. The possible blood group of father would be .........
$O$ or $A$
$A$ or $AB$
$B$ or $AB$
$O$ or $AB$
A person having blood group $O$ can receive blood of
Genotype of blood group $‘A'$ will be
A child has blood group $O .$ If the father has blood group $A$ and mother blood group $\mathrm{B},$ work out the genotypes of the parents and the possible genotypes of the other offsprings.
How many phenotype and genotypes are possible in ABO blood group systems?
$A$ : Blood group phenotype is controlled by presence or absence of antigens present on surface coating of $RBC$.
$R$ : These antigens are of three types and found in the oligosaccharides rich head regions of a glycophorin