One day Olga and Greg decided to vist the genetic counselor. They feared that there was a possibility that they're off springs may experience some disease that are shown in their families.
The First step was to draw a pedigree. (A pedigree is like a family tree but it shows more stuff like diseases)
This pedigree shows that factor Vll is a sex linked disease. This means that it mostly shows up in boys. So therefore Olga and Greg only have to worry about factor Vll if they have a boy. Mytonic has showed up twice and not in the same generation so this means that it is a Recessive disease. Olga and Greg's off spring may have this disease because it is recessive. (meaning it is in the genes) Hemophillia has only shown up once before so that means the their off spring most likely won't have hemophillia.
As you can see with the pedigree drawn Olga and Greg do not have much to worry about.
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