Question

What are the possible blood types among the children of parents that are IAIB and ii? A. types A and B B. types A, B, and AB C. types A, B, and O D. types A, B, AB, and O

Answer 1

types a and b b. iaib

Answer 2

The correct answer would be A. types A and B.

In ABO blood group, blood group is determined by three alleles
`I^(A),`
`I^(B),` and
`i`.

`I^(A)` and
`I^(B)` are codominant to each other whereas
`i` is recessive to the other two.

The genotype of one parent is
`I^(A)I^(B)`. So, two types of gametes would be produced
`I^(A)` and
`I^(B)`

The genotype of second parent is
`ii`. So, the gamete produced would be
`i`.

The cross would result in the production of offspring with genotype
`I^(A)i` and
`I^(B)i`.

Thus, the phenotype of the offspring would be blood group A and B.