1) Huntington's disease is a dominant trait. What are the possible genotypes of an individual with Huntington's disease?

2) A horizontal line connecting two individuals represents

3) The roman numerals on the side of a pedigree represent

4) A half filled circle represents a

5) Paula is affected by a trait. Her husband is not. They have 3 sons; one son has the trait but the other two sons do not have the trait. What type of pedigree is shown?

6) Mario and Elaine do not have the trait. Of their 5 children, all 4 boys have the trait but their 1 daughter does not have the trait. What type of pedigree is shown?

7) Manny and his sister have the trait. Their parents do not have the trait. What type of pedigree is shown?

8) Familial hypercholesterolemia is an autosomal dominant disorder. Both Alvin and his wife are heterozygous for the disorder. What are the chances of their offspring having the disorder?

9) In a pedigree, an affected male will be drawn as

10) Colorblindness is a sex-linked trait that is represented with the recessive allele (c). What would the parents' genotypes be if they have a colorblind girl?

11) Linda has heterozygous type B blood. Her husband, Leo, is AB blood. What is the probability in fraction that they will have a child with A blood?

12) Adrian is type A blood and his wife Carla is type B blood. What are Adrian and Carla's genotypes if 50% of their children have AB blood and the other 50% have A blood?

13) Purple flowers are dominant to white flowers. What are the parents' genotypes if they produce all offspring that are heterozygous for purple flowers?

14) Dimples (D) are dominant to not having dimples. Freckles (F) are dominant to not having freckles. What is a person's genotype if they have dimples but no freckles?

15) A red flower and a blue flower cross and produce offspring that have purple flowers. What type of inheritance pattern is shown?

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