1. A woman with type A blood, whose father has type O blood and mother type AB, marries a man with type AB blood when mother had type A and father type B. What percentage of this couple's children would be expected to have type AB Blood?

A. 0

B. 25

C. 50

D. 75

E. 100

2. A man of blood type A and a woman of blood type B have four children, each with different ABO blood type. The genotype of the man is _________________ and the genotype of this woman is:____________

A. I ^A / I ^A and I ^B / I ^B
B. I ^A / I ^A AND I ^B /i
C. I ^A /i and I ^B / I ^B
D. I ^A /i and I ^B /i
E. i/i and I ^B / I ^B