Pedigree Review

How many boys did the mother and father from the first generation have?

• 2
• 4
• 5
• 6

How many people in this whole pedigree have the trait/disease?

• 2
• 3
• 4
• 6

In a pedigree, what shape represents a male?

• circle
• square
• triangle
• diamond

How many girls in this family express this recessive disorder?

• 4
• 5
• 6
• 7

What does a horizontal line between a square and a circle mean?

• They are siblings
• They are cousins
• They are married ("together")
• They are the children

There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?

• Dominant
• Recessive

Is this trait (the shaded individuals) dominant or recessive?

• dominant
• recessive

If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?

• HH
• Hh
• hh
• None of the above

This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?

• 8
• 5
• 2
• 3

Give the genotype for person III-3.

• GG
• Gg
• gg
• we cannot be 100% sure of the genotype