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
${I^a}{I^b}$
${I^a}{I^o}$
${I^b}{I^o}$
${I^b}{I^b}$
Blood group of the father is $A$ and blood group of mother is $B$. Then predict the blood group of the progeny -
The plasma membrane of the red blood cells has ...$A$... polymers that protrude from its surface and the kind of sugar is controlled by the gene. The gene I has three alleles ...$B$... The alleles and produce a slightly different form of the sugars, while allele i doesn't produce any ...$C$...
Choose the correct option for $A, B$ and $C$
When dominant and recessive alleles express themselves together, it is called
Progeny with blood group $‘O’$ can not be obtained in cross
The number of phenotypes in $ABO$ blood group is