Answer and Explanation:
Given that the ABO blood typing uses 3 alleles
The blood type of ABO could find out by considering three different alleles i.e [tex]I^{A}, I^{B}\ and \ i[/tex]
where,
[tex]I^{A}\ and\ I^{B}[/tex] = co-dominant
i = recessive
The dominant allele genotypes are as follows
For type A = [tex]I^{A} I^{A}/ I^{A}\ i[/tex]
For type B = [tex]I^{B} I^{B}/ I^{B}\ i[/tex]
For type AB = [tex]I^{A} I^{B}[/tex]
Therefore the above two are dominants and the same is to be considered
