In the $ABO$ system, of blood group which of the following is example of co-dominance ?
$I^AI^A$
$I^BI^B$
$I^AI^B$
$ii$
$ABO$ blood grouping is controlled by gene I which has three alleles and show codominance. There are six genotypes. How many phenotypes in all are possible?
The probablity of having a child with blood group $O$ to parents with blood groups $A$ and $B$ is
A child's blood group is ‘$O$'. The parents blood groups cannot be
$A$ woman is married for the second time. Her first husband was $ABO$ blood type $A,$ and her child by that marriage was type $O.$ Her new husband is type $B$ and their child is type $A B$.
What is the women's $ABO$ genotype and blood type?
A person meets with an accident and great loss of blood has occurred. There is no time to analyse his blood group. It is safe to transfer blood of group