(Dna & Blood Evidence) Test Review Page 7
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8Part 3: Problems
Complete the Punnett squares and determine the possible offspring genotypes and phenotypes for each.
1. A woman heterozygous for type B blood has children with a man who has type AB blood.
Possible offspring genotypes:
Possible offspring phenotypes:
2. What is the probability that a child from this couple has type B blood?
( 100% | 75% | 50% | 25% | 0% )
3. A woman with type O blood has children with a man heterozygous for type B blood.
Possible offspring genotypes:
Possible offspring phenotypes:
4. What is the probability that a child from this couple has type O blood?
( 100% | 75% | 50% | 25% | 0% )
5. A woman with type AB blood has children with a man with type AB blood.
Possible offspring genotypes:
Possible offspring phenotypes:
6. What is the probability that a child from this couple has type O blood?
( 100% | 75% | 50% | 25% | 0% )
7. A woman homozygous for type A blood has children with a man heterozygous for type B blood.
Possible offspring genotypes:
Possible offspring phenotypes:
8. What is the probability that a child from this couple has type O blood?
( 100% | 75% | 50% | 25% | 0% )
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