AP Biology Pedigrees

How many alleles does a person carry for a trait?

• 1

• 2

• 3

• 4

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

• 1

• 2

• 3

• 4

Tags

NGSS.HS-LS3-1

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

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Does this pedigree show a dominant or recessive trait?

• Dominant
• Recessive

What is the genotype for person III-3?

• GG

• Gg

• gg

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

What is the genotype of the male in generation one?

• AA

• Aa

• aa

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The pedigree of a family with a history of a particular genetic disease is shown. Squares represent males and circles represent females. Shaded symbols represent those who have the disease.

If Individual 2 were to marry a woman with no family history of the disease, which of the following would most likely be true of their children?

• All of the children would have the disease.

• None of the children would have the disease

• Only the sons would have the disease

• All of the sons would be carriers of the disease

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The pedigree of a family with a history of a particular genetic disease is shown. Squares represent males and circles represent females. Shaded symbols represent those who have the disease

If Individual 6 marries a woman with the disease, what is the probability that their first child will have the disease?

• 0

• 25%

• 50%

• 75%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2