Genes located at the same locus of chromosomes are called

Parents of blood groups $O$ and $AB$ cannot have a child of group $AB$ because

$A$ man with blood group $A$ marries a woman having blood group $B$. The maximum possible blood groups among their progenies are

If the father gives $I^B$ allele and the mother gives $I^A$ allele,state the genotype and blood group of the offspring.

$A$ man of blood group-$A$ marries a woman of blood group-$B$. Both of them are heterozygous for their blood group. The chances of their first child having blood group $AB$ will be: (in $, \%$)

If the mother's blood group is '$A$' and the father's blood group is '$AB$',then the possible blood groups of their children will be: