Question

A couple has 4 children whose blood types are A, A, B, and AB. Which of the following parental genotypes are capable of producing the blood types of this couples children? Show all work.

a.) I^A I^O and I^B I^O

b.) I^A I^O and I^B I^B

c.) I^A I^O and I^O I^O

d.) I^B I^O and I^O I^O

e.) more than one of the above

Answer 1

Option (a) is correct answer.