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WorksheetsPedigrees 1
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
How many females are in this pedigree?
a)
3
b)
4
c)
6
d)
7
2.
How many people in the pedigree are carriers for the disorder?
a)
6
b)
8
c)
2
d)
9
3.
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
4.
Colorblindness is a recessive sex-linked trait. If B = normal & b = colorblind, which genotype represents a female with colorblindness.
a)
XBXB
b)
XBXb
c)
XbXb
d)
XbY
5.
All males receive their X chromosome from their ________.
a)
mother
b)
father
c)
brother
d)
sister
6.
Which of the following could be the genotype of a carrier?
a)
BB
b)
Hh
c)
tt
d)
DD
7.
This trait is recessive. What is the genotype for person II-1?
a)
GG
b)
Gg
c)
gg
d)
can't be determined
8.
This pedigree shows what pattern of inheritance?
a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex-linked Dominant
d)
Sex-linked Recessive
9.
What is the genotype of the father?
a)
AA
b)
aa
c)
Aa
d)
AA or aa
10.
What is the genotype of the mother?
a)
BB
b)
bb
c)
Bb
d)
BB or Bb
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