Question

ABO blood typing uses 3 alleles. From your course notes answer the following two questions: Which two are dominant? _________ Write the two dominant allele genotypes, using the capital letter I, and then a superscript for each of them. __

Answer 1

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
`I^(A), I^(B)\ and \ i`

where,

`I^(A)\ and\ I^(B)` = co-dominant

i = recessive

The dominant allele genotypes are as follows

For type A =
`I^(A) I^(A)/ I^(A)\ i`

For type B =
`I^(B) I^(B)/ I^(B)\ i`

For type AB =
`I^(A) I^(B)`

Therefore the above two are dominants and the same is to be considered