If one parent belongs to $‘A'$ blood group and the other to $‘O'$ blood group, their children possibly represent
$A$ and $B$ groups only
$AB$ only
$A$ and $O$ groups only
All four groups
How many phenotype and genotypes are possible in ABO blood group systems?
Genotype of blood group $‘A'$ will be
$ABO$ blood group a good example of
Can a child have blood group $‘O'$ if his parents have blood group $'A'$ and $'B'$ ? Explain.
A person with unknown blood group under $ABO$ system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend?