A woman is heterozygous for ABO blood group with an I^A allele and an i allele.?

Question

A man is heterozygous for an I^B allele and an i allele.
a. what are possible phenotype blood types of thier offspring.
b. In what percent will each occur?

Answer 1

Construct a punnet square:

Mom= I^A & i
Dad= I^B & i
Offspring will have a 1/4 chance of being: I^AI^B, I^Bi, I^Ai, ii

If the mother is I^Ai and the father is I^Bi, the possible blood phenotypes in the offspring are AB, B, A, and O. There is a 25% chance of each blood type.

Answer 2

Refer to your Punnett squares- it's easiest to see the percentages with 4 squares.

I think each combo would have to be AB, A, B, and O. This would be a 25% chance all around that their offspring would have the listed blood types.

Is this Pathophysiology??? I'm feeling your pain, if it is. I hate those questions!!