Three children in a family have blood types $O$, $AB$ and $B$ respectively. What are the genotypes of their parents?
$I^A i$ and $I^Bi$
$I^AI^B$ and $i\, i$
$I^BI^B$ and $I^AI^A$
$I^AI^A$ and $I^Bi$
The father has blood group $AB$ and mother $‘O'$. The child is supposed to have which of the following bloodgroups
$ABO$ blood group a good example of
The most popularly known blood grouping is the $ABO$ grouping. It is named $ABO$ and not $ABC$, because ' $O$ ' in it refers to having
In shorthorn cattle genes for red $(r_1)$, and white $(r_2)$ coat colour occur. Crosses between red $(r_1r_2)$ and white $(r_2r_2)$ produced $(r_1r_2)$ roan. This is an example of
The probablity of having a child with blood group $O$ to parents with blood groups $A$ and $B$ is