Second 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 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 the parents marked with the grey arrows have all of their children affected. In the case of X-linked inheritance only affected fathers can have affected daughters; the father marked with the grey arrow is unaffected. Please RETURN to the Second Pedigree assessment.
5. Y-linked Inheritance