Font size
WorksheetsPedigree Practice
Total questions: 32
Worksheet time: 30mins
What does B indicate?
line that indicates someone likes each other
line that indicates a marriage
line that indicates a relationship of parents and children
A male that does not have the trait.
How many generations are represented in the pedigree?
2
3
4
5
Which gender has an X and a Y chromosome?
male
female
On a pedigree, this symbol represents a ---
not affected female.
not affected male.
affected male.
affected female.
On a pedigree, this symbol represents a ----
not affected male.
not affected female.
affected male.
affected female.
How many individuals are there in the 3rd generation?
1
2
4
6
What is the mode of inheritance shown here?
Recessive because it "skips" a generation
Dominant because it shows up in every generation
If this pedigree shows a recessive disorder, what MUST the genotype of individual II-3 be?
HH
Hh
hh
Assuming a trait is AUTOSOMAL DOMINANT, a person with the genotype "Aa" would be
affected
unaffected
Assuming a trait is AUTOSOMAL RECESSIVE, a person with the genotype "Aa" would be
affected
unaffected
Which type of trait (dominant or recessive) usually skips a generation?
Dominant
Recessive
Which pedigree is showing a RECESSIVE inheritance pattern?
What do the circles and squares represent on a pedigree chart?
Squares have the trait, circles are carriers.
Squares are females, circles are males.
Circles are females, squares are males.
Circles have the trait, squares are carriers.
Objective #13
On a pedigree how do we know if they have the trait?
Not shaded
Shaded
Assuming a trait is AUTOSOMAL DOMINANT, what genotypes could make a person AFFECTED?
AA
Aa
aa
XAY
XaY
Assuming a trait is AUTOSOMAL RECESSIVE, what genotype would make a person AFFECTED?
AA
Aa
aa
XAY
XaY
Assuming a trait is AUTOSOMAL RECESSIVE, what genotypes would make a person UNAFFECTED?
AA
Aa
aa
XAY
XaY
Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an AFFECTED person?
XAY
XaY
XAXA
XAXa
XaXa
Assuming a trait is X-LINKED RECESSIVE, what are the genotypes of an UNAFFECTED person?
XAY
XaY
XAXA
XAXa
XaXa
The genotype XaY represents a ________
dominant male
recessive male
dominant female
recessive female
The genotype XAXa represents a ________
dominant male
recessive male
dominant female
recessive female
Assuming a trait is X-LINKED RECESSIVE, a person with the genotype "XAXa" would be ____
affected
unaffected
In a pedigree, individuals that are carriers are represented as shapes that are
Not shaded
Fully shaded
Half shaded
