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?
Type $AB$
Type $O$
Type $A$
Type $B$
A man with blood group $B$ marries a women with blood group $A$ and their first child is having blood group $B$. What is the genotype of child
A man with blood group ‘$AB$' marries a woman with ‘$O$' blood group. In this situation
Write short note on co-dominance.
$A$ child with mother of $B$ blood group and father of $AB$ group blood group, will not have the following blood group.
Which of the following is genetically dominant in man