Name: _________________________________________________ # _____
Date: ______ Per: ____
Case Student Analysis: Old Kentucky Blues
Part I
1.
Create two hypotheses explaining why the people in Troublesome Creek might be blue based on genetic
inheritance.
a.
b.
2. Briefly describe how you may be able to test one of your hypotheses.
Part II
3. Use the provided information on the Fugate family to create a pedigree tracing the inheritance of the blue
skin color
4. Use your pedigree to determine if the pattern of inheritance for the blue skin trait. Explain your decision.
5. Does your pedigree support either of your hypotheses? Explain your answer.
6. Fill in the genotypes for each individual on the pedigree.
Part III
7. What do the lines on the graph describe?
8. Copy the graph below and provide genotypes for each line.
9. Using the information of the graph, what can you determine about the pattern of inheritance for this
situation?
10. Compare your conclusions from Part II and Part III. Are your conclusions the same or different? If different,
why? Is one method better or ‘more correct’ than the other? Explain.