WorksheetsGenetics
Total questions: 60
Worksheet time: 15hrs 0mins
Based on the pedigree for color blindness, who is less likely to be color blind?
Males
Females
Both are equally likely.
Based on the pedigree for color blindness, which males in generation IV have color blindness?
IV-1 and IV-2
IV-2 and IV-8
IV-1 and IV-8
IV-1 and IV-5
Based on the pedigree for color blindness, how many children do the parents in generation I have?
7
6
5
4
Based on the pedigree for color blindness, how many males are color blind?
14
10
8
6
Based on the pedigree for color blindness, how many females are color blind?
11
7
3
1
Based on the pedigree for Huntington's Disease, what is the genotype of individual II-2?
HH
hh
Hh
Cannot tell from this pedigree
Based on the pedigree for Huntington's Disease, how are III-2 and II-4 related?
granddaughter and grandfather
grandson and grandmother
niece and uncle
nephew and aunt
Based on the pedigree for Huntington's Disease, how are III-5 and I-2 related?
granddaughter and grandfather
grandson and grandmother
niece and uncle
nephew and aunt
Based on the pedigree for Huntington's Disease, how are III-2 and I-1 related?
granddaughter and grandfather
grandson and grandmother
niece and uncle
nephew and aunt
Based on the pedigree for Huntington's Disease, how are III-5 and II-7 related?
granddaughter and grandfather
grandson and grandmother
niece and uncle
nephew and aunt
Based on this pedigree, having the trait is rare, or recessive. What MUST be the genotype of individual III-4?
MM
mm
Mm
Cannot tell from this pedigree for certain.
Based on this pedigree, having the trait is rare, or recessive. What MUST be the genotype of individual IV-2?
MM
mm
Mm
Cannot tell from this pedigree for certain.
Based on this pedigree, having the trait is rare, or recessive. What MUST be the genotype of individual IV-3?
MM
mm
Mm
Cannot tell from this pedigree for certain.
Based on this pedigree, having the trait is rare, or recessive. What can be said about the genotype of individual IV-2?
Homozygous dominant
Heterozygous dominant
Homozygous recessive
Heterozygous recessive
Based on this pedigree, having the trait is rare, or recessive. What can be said about the genotype of individual III-4?
Homozygous dominant
Heterozygous dominant
Homozygous recessive
Heterozygous recessive
What phenotype for eyes will the offspring have?
Ee
EE
ee
Two Eyes
One Eye
What genotype for eyes will the offspring have?
Ee
EE
ee
Two Eyes
One Eye
What fur phenotype will the offspring have?
FF
Ff
Visible fur
No fur visible
What percent of the offspring will have no visible fur?
0%
25%
50%
75%
100%
What percent of the offspring will have horns?
0%
25%
50%
75%
100%
What percent of the offspring will have horns?
0%
25%
50%
75%
100%
What percent of the offspring will walk on 4 legs?
0%
25%
50%
75%
100%
What fur phenotype will the offspring have?
FF
ff
Ff
visible fur
no visible fur
What eye phenotype will the offspring have?
EE
ee
Ee
Two eyes
One eye
What percent of the offspring will have horns?
0%
25%
50%
75%
100%
What fur phenotype will the offspring have?
FF
ff
Ff
visible fur
no visible fur
What percent of the offspring will not have visible fur?
0%
25%
50%
75%
100%
What leg phenotype will the offspring have?
LL
ll
Ll
walks on 2 legs
walks on 4 legs
What percent of the offspring will have one eye?
0%
25%
50%
75%
100%
How could you define dominant?
The trait that is more common. This trait will be expressed with 2 capital letters as well as with one capital and one lower case letter.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
A heterozygous organism may also be called this.
When an organism has one of each gene - a dominant and a recessive. This gene pairing will always result in the dominant trait.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
How could you define recessive?
The trait that is more common. This trait will be expressed with 2 capital letters as well as with one capital and one lower case letter.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
A heterozygous organism may also be called this.
When an organism has one of each gene - a dominant and a recessive. This gene pairing will always result in the dominant trait.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
How could you define hybrid?
The trait that is more common. This trait will be expressed with 2 capital letters as well as with one capital and one lower case letter.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
A heterozygous organism may also be called this.
When an organism has two of the same genes.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
How could you define heterozygous?
The trait that is more common. This trait will be expressed with 2 capital letters as well as with one capital and one lower case letter.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
A heterozygous organism may also be called this.
When an organism has one of each gene - a dominant and a recessive. This gene pairing will always result in the dominant trait.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
How could you define phenotype?
The trait that is more common. This trait will be expressed with 2 capital letters as well as with one capital and one lower case letter.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
A heterozygous organism may also be called this.
When an organism has one of each gene - a dominant and a recessive. This gene pairing will always result in the dominant trait.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
How could you define genotype?
The trait that is more common. This trait will be expressed with 2 capital letters as well as with one capital and one lower case letter.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
The gene pair an organism has denoted by two letters.
When an organism has one of each gene - a dominant and a recessive. This gene pairing will always result in the dominant trait.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
How could you define homozygous?
When an organism has two of the same genes.
The trait that is more rare. This trait can only be expressed with 2 lower case letters.
The gene pair an organism has denoted by two letters.
When an organism has one of each gene - a dominant and a recessive. This gene pairing will always result in the dominant trait.
The variation of the trait that we see (widow's peak) or is present (sickle cell anemia).
What is the phenotype and genotype of a pea plant that is heterozygous for height?
Tall TT
Tall Tt
Short tt
Short Tt
What is the phenotype and genotype of a pea plant that is heterozygous for flower position?
Axial AA
Axial Aa
Terminal aa
Terminal Aa
What is the phenotype and genotype of a pea plant that is heterozygous for seed color?
Yellow YY
Yellow Yy
Green yy
Green Yy
What is the phenotype and genotype of a pea plant that is heterozygous for pod color?
Yellow gg
Yellow Gg
Green GG
Green Gg
What is the genotype of a pea plant that is homozygous short?
TT
Tt
tt
What is the genotype of a pea plant that is homozygous green pod?
GG
Gg
gg
What is the genotype of a pea plant that is homozygous constricted pod?
SS
Ss
ss
What is the genotype of a pea plant that is homozygous smooth pod?
SS
Ss
ss
What is the genotype of a pea plant that is pure wrinkled?
RR
Rr
rr
What is the genotype of a pea plant that is hybrid tall?
TT
Tt
tt
If the trait for tasting PTC demonstrated in this pedigree is designated using the letter "t", what is the genotype for both of the parents that are circled?
TT
Tt
tt
Cannot say for certain based on this pedigree
If the trait for tasting demonstrated in the pedigree is designated by the letter "t", what must be the genotype of the individual in the triangle?
TT
Tt
tt
Cannot be determined for certain based on the pedigree.
What can we determine about Sam's parents in this pedigree?
The gene for sickle cell anemia was not present in Sam's parents because it skipped a generation.
Sam's parents both had a genotype of SS.
Sam's parents both had a genotype of ss.
Sam's parents had two different genotypes - SS and ss
Sam's parents passed on sickle cell anemia to Sam because they both had the genotype Ss.
How many children did couple 2 have?
2
3
4
6
Shading in a pedigree means the trait is present. Based on this pedigree, is this trait dominant or recessive?
dominant
recessive
hybrid
Cannot determine for certain based on this pedigree.
Shading in a pedigree means the trait is present. Based on this pedigree, what must be the genotype of the father in couple 4?
FF
ff
Ff
Cannot determine for certain based on this pedigree.
Shading in a pedigree means the trait is present. Based on this pedigree, what must be the genotypes of the parents in couple 4?
Both are FF
Both are ff
Both are Ff
One parent is FF and the other is ff
Cannot determine for certain based on this pedigree.
Shading in a pedigree means the trait is present. Based on this pedigree, what can be determined about the genotypes of the parents in couple 2?
Both are FF
Both are ff
Both are Ff
Can only determine the mother's genotype for certain.
Can only determine the father's genotype for certain.
Shading in a pedigree means the trait is present. Based on this pedigree, what must be the genotype of the father in couple 5?
FF
ff
Ff
Cannot determine for certain based on this pedigree.
Shading in a pedigree means the trait is present. Based on this pedigree, what must be the genotype of the offspring of couple 5?
FF
ff
Ff
Cannot determine for certain based on this pedigree.
Shading in a pedigree indicates that the trait is present. Having this trait is dominant. Based on this information, what must be the genotype of individual I-1?
AA
aa
Aa
Cannot be determined for certain by this pedigree.
Shading in a pedigree indicates that the trait is present. Having this trait is dominant. Based on this information, what must be the genotype of individual III-6?
AA
aa
Aa
Cannot be determined for certain by this pedigree.
Shading in a pedigree indicates that the trait is present. Having this trait is dominant. Based on this information, what must be the genotype of individual III-3 and III-4?
AA
aa
Aa
Cannot be determined for certain by this pedigree.
Shading in a pedigree indicates that the trait is present. Having this trait is dominant. Based on this information, what must be the genotype of individual II-3?
AA
aa
Aa
Cannot be determined for certain by this pedigree.
