Pedigree Analysis

Analyze the pedigree below to determine if it could fit the mode of inheritance listed in the questions. If the pedigree does fit the mode of inheritance listed, answer A (= true) on your answer sheet. If the pedigree does not fit the mode of inheritance listed, answer B (= false) on your answer sheet.

1. The pedigree could be for a trait that has an autosomal recessive mode of inheritance.    true    false

2. If you answered false to #1, explain why.

3. The pedigree could be for a trait that has an autosomal dominant mode of inheritance.    true    false

4. If you answered false to #3, explain why.

5. The pedigree could be for a trait that has an X-linked recessive mode of inheritance.    true    false

6. If you answered false to #5, explain why.

The pedigree below is an example of the inheritance of a particular type of dwarfism. Individuals afflicted with dwarfism are shaded: individuals of normal height are not shaded.

7. The genotype of individual 6 is:
A. AA B. Aa C. aa D. impossible to determine due to insufficient data.