Genetics Quiz 2: Incomplete Dominance, Sex-linked, Pedigrees and Blood Type
Use this information for problems 1, 2 & 3. In roses, red and white color are incompletely
dominant to form pink flowers when crossed.
1. Make a key for the genotypes and phenotypes:
2. When a red rose and a pink rose are crossed, what are the chances of getting a pink rose?
3. When two white roses are crosses, what are the chances of getting a pink rose?
Use this information to answer 4, 5 & 6. Pattern Baldness is X-linked recessive.
4. Make a key for the genotypes and phenotypes:
5. Cross a bald man with a carrier woman. What are the chances that their child will be a girl
who keeps her hair?
6. What are the chances of having a bald son when a man with hair (no baldness) and a carrier
woman are crossed?
7. A woman with type O blood and a man with type A blood have a child with type O blood.
Show how this could be possible.
8. What are the chances of a man with heterozygous type B blood and a woman with type AB
blood having a child with type B blood?
9. What blood type can be given in a transfusion to a person who has type B-positive blood (list
all possible types)
10. What type of blood can receive type AB blood in a transfusion (list all possible types)?
11-14-Determine if each pedigree is possible or not. Explain your reasons.
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