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WorksheetsPedigree Chart
Total questions: 28
Worksheet time: 16mins
Name
Class
Date
1.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
2.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
3.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
4.
How many boys did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
5.
How many girls did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
6.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
7.
In the second generation-how many people are carriers of the trait?
a)
2
b)
3
c)
5
d)
6
8.
How many individuals are there in the 3rd generation?
a)
2
b)
3
c)
4
d)
6
9.
How many kids did individual one and two (from the second generation) have?
a)
2
b)
3
c)
4
d)
6
10.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
11.
How many people in the pedigree are carriers for the disorder?
a)
6
b)
8
c)
2
d)
9
12.
Looking at this pedigree, how many family members have the disease?
a)
4
b)
7
c)
All
d)
None
13.
In the second generation-how many people have the disease or display the physical trait?
a)
2
b)
4
c)
5
d)
6
14.
How many kids did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
15.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
16.
What do half colored symbols represent?
a)
The individual is a carrier.
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
17.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
18.
How many people in the pedigree are carriers for the disorder?
a)
6
b)
8
c)
2
d)
9
19.
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.
20.
The genotype of the affected son and daughter at the bottom of this pedigree...
a)
could be homozygous dominant
b)
could be homozygous recessive
c)
could be heterozygous
d)
Can't tell
21.
What do half colored symbols represent?
a)
The individual is a carrier.
b)
The individual expresses the trait.
c)
The individual has both recessive alleles.
d)
The individual has both dominant alleles.
22.
a)
Not affected Female
b)
Not affected Male
c)
Affected Male
d)
Affected Female
23.
a)
Not Affected Male
b)
Not Affected Female
c)
Affected Male
d)
Affected Female
24.
a)
Not affected male
b)
Not affected female
c)
Affected male
d)
Affected female
25.
a)
Not affected male
b)
Not affected female
c)
Affected male
d)
Affected female
26.
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
27.
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
28.
What does a double line mean?
a)
double mint gum
b)
twins
c)
double relation
d)
double trouble
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