Third Pedigree

The following pedigree presents you with the inheritance pattern of a trait within a family. Use the interrelationships between the affected family members to determine what type of inheritance is followed by this trait.

Please determine the genotypes of family members, and choose the option which best describes the inheritance pattern of the highlighted trait (magenta color) in the above family pedigree.

1. Autosomal Dominant Inheritance
2. Autosomal Recessive Inheritance
3. Mitochondrial Inheritance
4. X-linked Inheritance - Please note that there are fathers in this family who pass the trait to their sons (blue arrows), but fathers do not contribute with an X chromosome to their sons’ genome. Please RETURN to the Third Pedigree assessment.
5. Y-linked Inheritance