Pedigree Genetics

The colored shapes always denote the diseased individuals. What type of disease is shown in the pedigree?

• the disease is recessive

• the disease is dominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The pedigree diagram shows the family members with a genetic disease. Which statement is true

• this disease only affects males

• this disease is dominant

• this disease only affects females

• this disease is contagious

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In a pedigree, what shape represents a male?

• circle
• square
• triangle
• diamond

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

• HH

• Hh

• hh

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

This family tree shows the people with a recessive disease colored in. How many diseased females are present?

• 1

• 2

• 3

• 4

• 6

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many individuals are there in the 3rd generation?

• 2
• 3
• 4
• 6

Tags

NGSS.HS-LS3-1

How many generations are shown in this pedigree?

• 1
• 2
• 3
• 4

Use the key to work out how many family members have the recessive disease Hemophilia?

• 4

• 7

• All

• None

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many generations are there?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

What is the genotype of the mother?

• BB
• bb
• Bb
• BB or Bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2