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Pedigree Charts

Total questions: 30

Worksheet time: 3600secs

Name
Class
Date
1.

In a pedigree chart, men are represented by

a)

Circles

b)

Diamonds

c)

Squares

2.

In a pedigree chart, women are represented by

a)

Circles

b)

Diamonds

c)

Squares

3.

In a pedigree, individuals that are carriers are represented as shapes that are

a)

Not shaded

b)

Fully shaded

c)

Half shaded

4.

In a pedigree, individuals that are unaffected are represented as shapes that are

a)

Not shaded

b)

Fully shaded

c)

Half shaded

5.

In a pedigree, individuals that are affected are represented as shapes that are

a)

Not shaded

b)

Fully shaded

c)

Half shaded

6.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
7.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
8.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
9.
How many affected females are deceased? 
a)
0
b)
2
c)
4
d)
All 
10.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
11.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
12.

Objective #13

This is a pedigree that follows blue eyes which is a recessive trait. What is the phenotype of the mother (circle) in generation 1?

a)

Brown

b)

Blue

c)

1 blue, 1 brown

13.

Who is the daughter of individual I-1 and I-2?

a)

II-1

b)

II-7

c)

II-8

14.

How many males are in the second generation?

a)

3

b)

4

c)

5

d)

6

15.

This is a recessive disease pedigree. What is the genotype of the male in generation I?

a)

Rr

b)

RR

c)

R?

d)

rr

16.

This pedigree shows affected people with the recessive trait. What is the genotype of someone with a shaded in shape?

a)

AA

b)

Aa

c)

A?

d)

aa

17.

This pedigree shows affected people with the recessive trait. What is the genotype of individual I-2?

a)

AA

b)

Aa

c)

A?

d)

aa

18.

If individual IV-5 has children with someone with the disorder, what are the chances of having a child with the disorder.

a)

25%

b)

50%

c)

75%

d)

100%

19.

Individuals that are shaded in have premature hair whitening. Is this trait dominant or recessive? How do you know?

a)

Dominant because it skips generations

b)

Dominant because it is present in every generation

c)

Recessive because it skips generations

d)

Recessive because it is present in every generation.

20.

Objective #13

This is a pedigree that follows blue eyes which is a recessive trait. What is the genotype of the father (square) in generation 1?

a)

Aa

b)

AA

c)

aa

d)

A?

21.
If this pedigree shows an autosomal recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
22.

In this pedigree, which gender can be carriers of colorblindness and not have it?

a)

Just males

b)

Just females

c)

Both genders

23.
This pedigree represents the inheritance of hemophilia in this family. How many of the females have the hemophilia trait?
a)
8
b)
5
c)
2
d)
3
24.

Objective #13

This is a pedigree that follows blue eyes which is a recessive trait. What is the phenotype of the mother (circle) in generation 1?

a)

Brown

b)

Blue

c)

1 blue, 1 brown

25.

Assuming a trait is X-LINKED RECESSIVE, a person with the genotype "XAXa" would be ____

a)

affected

b)

unaffected

26.

Assuming a trait is X-LINKED RECESSIVE, a person with the genotype "XaY" would be ____

a)

affected

b)

unaffected

27.

This is a __ trait.

a)

autosomal recessive.

b)

sex-linked.

c)

autosomal dominant.

28.

Generation 1 individual 1's relationship to generation 2 individual 3 is

a)

number 3's mom.

b)

number 3's dad.

c)

number 3's brother.

d)

number 3's uncle.

29.
If a trait is more likely to appear in one sex over the other......
a)
the trait is probably sex-linked.
b)
the trait is probably autosomal.
c)
the trait is probably co-dominant
d)
the trait if probably incompletely dominant
30.
What type of heredity is shown in the pedigree?
(hint: check your notes - "modes of inheritance")
a)
Sex-Linked Dominant
b)
Sex-Linked Recessive
c)
Autosomal Dominant
d)
Autosomal Recessive 

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