Consider the following statement regarding $ABO$ blood group in human
$I.$ It is controlled by multiple allele
$II.$ It shows codominance
$III.$ Codominance can be manifested phenotypically in human
$IV.$ It follows the Mendel law of inheritance
Which of the following statements (s) are correct?
Only $I$ is correct
$I$ and $II$ are correct
$II$ and $III$ are correct
$IV$ and $II$ are correct
The father has blood group $AB$ and mother $‘O'$. The child is supposed to have which of the following bloodgroups
In short horned cattle, genes for red $(R)$ and white $( r )$ coat colour occur. Cross between red $(RR)$ and white $(rr)$ produced $(Rr)$ roan. This is an example of
Between persons of which two blood groups is the blood transfusion not possible
The genotypes of a husband and wife are $I^AI^B$ and $I^Ai$. Among the blood types of their children, how many different genotypes and phenotypes are possible?
The probablity of having a child with blood group $O$ to parents with blood groups $A$ and $B$ is