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WorksheetsPedigrees Review
Total questions: 16
Worksheet time: 14mins
Name
Class
Date
1.
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
2.
How many individuals are there in the 3rd generation?
a)
2
b)
3
c)
4
d)
6
3.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
4.
Examine the pedigree. The allele for the presence of a widow’s peak is dominant. Therefore, we can tell from the chart that in the couple labeled 2:
a)
the male is heterozygous and the female is homozygous.
b)
the male is homozygous and the female is heterozygous.
c)
the male is homozygous and the female is homozygous.
d)
the male is heterozygous and the female is heterozygous.
5.
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
6.
How are individuals III-2 and II-4 related?
a)
Cousins
b)
Dad and Daughter
c)
Uncle and Niece
d)
Grandpa and Granddaughter
7.
Give the genotype for person III-3
a)
GG
b)
Gg
c)
gg
8.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
9.
If this pedigree shows a recessive disorder, what MUST the genotype of individual II-3 be?
a)
HH
b)
Hh
c)
hh
d)
None of the above
10.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
11.
What does a horizontal line between a square and a circle mean?
a)
They are siblings
b)
They are cousins
c)
They are married ("together")
d)
They are the children
12.
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
13.
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.
14.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
15.
How many boys did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
16.
What does a vertical line coming down from a square and circle that are connected by horizontal line indicate?
a)
They are cousins
b)
The children
c)
Aunts and Uncles
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