WorksheetsPedigrees #2
Total questions: 10
Worksheet time: 36mins
Name
Class
Date
1.
Wet earwax is a dominant trait (E), dry earwax is recessive trait (e). What is the sex, phenotype, and genotype of individual III-4?
a)
male, wet earwax, Ee
b)
male, dry earwax, ee
c)
male, wet earwax EE
d)
male, wet earwax, cannot tell genotype
2.
How many girls in this family express this recessive disorder?
a)
4
b)
5
c)
6
d)
7
3.
Give the genotype for person III-3.
a)
GG
b)
Gg
c)
gg
d)
we cannot be 100% sure of the genotype
4.
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
5.
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
6.
How are individuals I-2 and III-5 related?
a)
Grandpa and grandson
b)
Mom and son
c)
Uncle and nephew
d)
Grandma and grandson
7.
If hemophilia is a sex-linked recessive trait, what genotype would individual III-3 have?
a)
XbX
b)
XbXb
c)
XbYb
d)
XbY
8.
If a trait SKIPS a generation, it is an indication that the trait is....
a)
dominant
b)
recessive
c)
incompletely dominant
d)
co-dominant
9.
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
10.
What is the mode of inheritance shown here?
a)
Autosomal Dominant
b)
Autosomal Recessive
c)
Sex Linked Recessive
d)
Co-dominant
100 %
