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
Incomplete dominance
Codominance
Complementary genes
Epistasis
The father has blood group $AB$ and mother $‘O'$. The child is supposed to have which of the following bloodgroups
Genotype of blood group $‘A'$ will be
$ABO$ 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?
In case of disputed parentage, the blood group analysis of the mother, child and alleged father can
How many phenotype and genotypes are possible in ABO blood group systems?