U4L8 Basics of Pedigrees

What do we use pedigrees for?

• To look at families
• To make determinations about the offspring
• To track traits in families
• Nothing

In a pedigree, what shape represents a male?

• circle
• square
• triangle
• diamond

How many generations are shown in this pedigree?

• 1
• 2
• 3
• 4

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

AA and Aa always show up as

• dominant
• recessive

aa always shows up as

• dominant
• recessive

How many alleles does a child get from each parent for a trait?

• 1

• 2

• 3

• 4

If this pedigree shows a recessive disorder, what MUST the genotype of individual 4 be?

• HH

• Hh

• hh

What is the genotype of the father?

• AA
• aa
• Aa
• AA or aa