Blood Type Inheritance Problems

Blood Type Inheritance Problems

Blood type in humans is controlled by multiple alleles. Type O is recessive (ii) to Type A (I^A I^A or I^Ai), Type B (I^BI^B or I^Bi), and Type AB (I^AI^B).

1. If a woman is homozygous for Type A blood and her husband is Type O, what is the probability that their offspring would have any one of the 4 possible blood types?

2. If a woman is heterozygous for Type A and her husband is heterozygous for Type B, what is the probability of blood types that their offspring would have?

3. If a man and his wife are both heterozygous Type A, what is the probability of blood types that their offspring would have?

4. If a woman is blood Type AB and her husband is blood Type O, what is the probability of blood types that their offspring would have?

5. A woman has blood Type O, her baby has blood Type A: Is it possible that a man who has the blood Type AB could be the father? Show the Punnett Square and explain.

6. A woman has blood Type O, her baby has blood Type A: Is it possible that a man who has the blood Type B could be the father? Show the Punnett Square and explain.

7. A woman has blood Type AB, her baby has blood Type A: Is it possible that a man who has the blood Type B could be the father? Show the Punnett Square and explain.

8. A woman has blood Type A, her baby has blood Type AB: Is it possible that a man who has the blood Type A could be the father? Show the Punnett Square and explain.

9. A woman has blood Type O, her mother has blood Type O: Is it possible that a man who has the blood Type A could be the father? Show the Punnett Square and explain.

10. A baby has blood type B. What possible blood types could his parents have?