WorksheetsPedigree Quiz
Total questions: 21
Worksheet time: 38mins
Name
Class
Date
1.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
2.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
3.
In a pedigree, what shape represents a male?
a)
circle
b)
square
c)
triangle
d)
diamond
4.
Is this trait (the shaded individuals) dominant or recessive?
a)
dominant
b)
recessive
5.
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
6.
How many boys did the mother and father from the first generation have?
a)
2
b)
4
c)
5
d)
6
7.
How many people in this whole pedigree have the trait/disease?
a)
2
b)
3
c)
4
d)
6
8.
How many girls in this family express this recessive disorder?
a)
4
b)
5
c)
6
d)
7
9.
How many generations are shown in this pedigree?
a)
1
b)
2
c)
3
d)
4
10.
Which individual in the first generation is a carrier?
a)
The male
b)
The female
c)
individual 1
d)
None of the above
11.
There are no carriers for Huntington's Disease- you either have it or you don't. Is Huntington's disease caused by a dominant or recessive trait?
a)
Dominant
b)
Recessive
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.
Huntington's Disease is a dominant trait.
What is the correct genotype for individual I-2?
What is the correct genotype for individual I-2?
a)
HH
b)
Hh
c)
hh
d)
H_
14.
Give the genotype for person III-3.
a)
GG
b)
Gg
c)
gg
d)
we cannot be 100% sure of the genotype
15.
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
16.
What kind of trait is colorblindness if females can be carriers without having the disease?
a)
Regular trait
b)
Sex-linked trait
c)
Co-dominant trait
d)
Incomplete dominant trait
17.
If hemophilia is a sex-linked recessive trait, what genotype would individual III-3 have?
a)
XbX
b)
XbXb
c)
XbYb
d)
XbY
18.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
19.
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
20.
What is the mode of inheritance shown here?
a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex Linked Recessive
d)
Co-dominant
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
100 %
