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Genetics Pedigree AP

Total questions: 8

Worksheet time: 31mins

Name
Class
Date
1.

How many alleles does a person carry for a trait?

a)

1

b)

2

c)

3

d)

4

2.

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

a)

1

b)

2

c)

3

d)

4

3.

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

a)

AA

b)

Aa

c)

aa

4.
Does this pedigree show a dominant or recessive trait?
a)
Dominant
b)
Recessive
5.

What is the genotype for person III-3?

a)

GG

b)

Gg

c)

gg

6.

What is the genotype of the male in generation one?

a)

AA

b)

Aa

c)

aa

7.

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?

a)

All of the children would have the disease.

b)

None of the children would have the disease

c)

Only the sons would have the disease

d)

All of the sons would be carriers of the disease

8.

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?

a)

0

b)

25%

c)

50%

d)

75%