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Pedigree Review

Total questions: 50

Worksheet time: 1hrs 23mins

Name
Class
Date
1.
What does a filled in square represent?
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
2.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
3.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
4.
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
5.
What do half colored symbols represent?
a)
The individual is a carrier (heterozygous).
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
6.
What does an open circle represent?
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
7.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
8.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
9.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
10.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
11.
What is this?
a)
Pedigree
b)
Karyotype
c)
Venn diagram
d)
Punnett Square
12.

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

a)

Just males

b)

Just females

c)

Both genders

13.
Give the genotype for person II-1, for this autosomal trait.
a)
GG
b)
Gg
c)
gg
d)
we cannot be 100% sure of the genotype
14.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
15.
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
16.

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?

17.

In this pedigree, the shading represents people in the family with dark hair while the unshaded represents blondes. Is dark hair controlled by a dominant or recessive allele?

a)

Dominant

b)

Recessive

18.

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.

19.
How are individuals III-2 and II-4 related?
a)
Cousins
b)
Dad and Daughter
c)
Uncle and Niece
d)
Grandpa and Granddaughter
20.

Huntington's Disease is a dominant trait.

What is the correct genotype for individual I-2?

a)

HH

b)

Hh

c)

hh

d)

H?

21.

In a pedigree, squares represent _______

a)

males

b)

females

22.

In a pedigree, circles represent _____

a)

males

b)

females

23.

In a pedigree, a person AFFECTED by a trait is

a)

shaded

b)

unshaded

24.

Assuming a trait is AUTOSOMAL DOMINANT, what genotypes could make a person AFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

25.

Assuming a trait is AUTOSOMAL DOMINANT, what genotype would make a person UNAFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

26.

Assuming a trait is AUTOSOMAL RECESSIVE, what genotype would make a person AFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

27.

Assuming a trait is AUTOSOMAL RECESSIVE, what genotypes would make a person UNAFFECTED?

a)

AA

b)

Aa

c)

aa

d)

XAY

e)

XaY

28.

Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an AFFECTED person?

a)

XAY

b)

XaY

c)

XAXA

d)

XAXa

e)

XaXa

29.

Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an UNAFFECTED person?

a)

XAY

b)

XaY

c)

XAXA

d)

XAXa

e)

XaXa

30.

Assuming a trait is X-LINKED DOMINANT, what are the genotypes of an UNAFFECTED person?

a)

XAY

b)

XaY

c)

XAXA

d)

XAXa

e)

XaXa

31.

The genotype XaY represents a ________

a)

dominant male

b)

recessive male

c)

dominant female

d)

recessive female

32.

The genotype XAXa represents a ________

a)

dominant male

b)

recessive male

c)

dominant female

d)

recessive female

33.

Assuming a trait is AUTOSOMAL DOMINANT, a person with the genotype "aa" would be

a)

affected

b)

unaffected

34.

Assuming a trait is AUTOSOMAL DOMINANT, a person with the genotype "Aa" would be

a)

affected

b)

unaffected

35.

Assuming a trait is AUTOSOMAL RECESSIVE, a person with the genotype "Aa" would be

a)

affected

b)

unaffected

36.

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

a)

affected

b)

unaffected

37.

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

a)

affected

b)

unaffected

38.

What is the purpose of pedigrees?

a)

To track traits in a family

b)

To make determinations about offspring

c)

To observe a family tree

d)

Pedigrees are not particularly usefule

39.

How many generations are shown in this pedigree?

a)

1

b)

2

c)

3

d)

4

40.

What does an open/unshaded circle represent?

a)

not affected male

b)

affected male

c)

not affected female

d)

affected female

41.

What does a filled square represent?

a)

not affected male

b)

affected male

c)

not affected female

d)

affected female

42.

The physical characteristics or expression of a gene is referred to as what?

a)

genotype

b)

phenotype

c)

allele

d)

pedigree

43.

The genotypes AA and Aa create the phenotype that is

a)

dominant

b)

recessive

44.

The genotype aa creates the phenotype that is

a)

dominant

b)

recessive

45.

Based on the pedigree shown, is the trait shown dominant or recessive?

a)

dominant

b)

recessive

46.

How can pedigrees reveal a traits heredity? For example, what do we know about albinism and how it is passed on based on the pedigrees you have seen?

4 lines
47.

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

a)

HH

b)

Hh

c)

hh

48.
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
49.

What is the genotype of both great-grandsons? (Individuals 13 and 16)

a)

AA

b)

Aa

c)

A_

d)

aa

50.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4

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