Pedigree Quiz

What does an open circle represent?

• Not Affected Male
• Not Affected Female
• Affected Male
• Affected Female

What does a filled in square represent?

• Not affected Female
• Not affected Male
• Affected Male
• Affected Female

What do half colored symbols represent?

• The individual is a carrier (heterozygous).
• The individual expresses the trait.
• The individual has both recessive alleles.
• The individual has both dominant alleles.

How many generations are shown in this pedigree?

• 1
• 2
• 3
• 4

How many offspring did the parents from the first generation have?

• 2

• 4

• 5

• 6

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

• 8
• 5
• 2
• 3

In the second generation-how many people are carriers of the trait?

• 2
• 3
• 5
• 6

This pedigree traces the trait of freckles. How many individual's in this pedigree have the freckles?

• 2

• 3

• 4

• 6

How many females are in this pedigree?

• 3
• 4
• 6
• 7

What is the BEST description of a pedigree chart?

• Pedigrees are used to analyze the pattern of inheritance of a particular trait throughout a family.

• Pedigrees are used to determine the percentage chance of different genotypes in the offspring of two parents.

• Pedigrees are used to organize a family structure to show who is related to whom.

• Pedigrees are an important too in diagnosing patient genetic disorders to find suitable treatments for the conditions