WorksheetsDihybrid, Incomplete, Codominance, Polygenic, Epistasis
Total questions: 31
Worksheet time: 27mins
Name
Class
Date
1.
What gamete possibilities could come from this parent's genotype?
a)
AB, AB, aB, aB
b)
Ab, AB, Ab, ab
c)
Ab, Ab, Ab, Ab
d)
AB, aB, ab, aB
2.
What gamete possibilities could come from this parent's genotype?
a)
aB, ab, AB, Ab
b)
aB, Ab, AB, AB
c)
AB, aB, AB, Ab
d)
aB, ab, aB, ab
3.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
4.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
5.
What goes in box 6
a)
AaBB
b)
AABB
c)
aaBB
d)
AAbb
6.
What goes in box 15
a)
abab
b)
ABAB
c)
aBaB
d)
AbAb
7.
Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?
a)
9/16
b)
3/16
c)
1/16
d)
16/16
8.
In humans, B is the allele for brown eyes and b is the allele for blue eyes. Two brothers both have brown eyes, but one of them has both the B and b alleles while the other only has B alleles. Which statement is true about the brothers?
a)
They have the same genotype and phenotype.
b)
They have different phenotypes and genotypes.
c)
They have the same phenotype but different genotypes.
d)
They have the same genotype but different phenotypes.
9.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
10.
What does heterozygous mean?
a)
An organism that has the same genes for a trait (TT or tt)
b)
An organism that has different genes for a trait (Tt)
c)
When neither gene is fully dominant; offspring is a mixture of both
d)
the different forms of a trait (hair color--> brown, blonde, red
11.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
12.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
13.
In a dihybrid cross
a)
one trait is crossed.
b)
two traits are crossed.
c)
four boxes are needed for the punnett square.
d)
mom's alleles are dominant.
14.
In flowers, purple color is dominant to pink and short is dominant to tall. Cross a flower that is heterozygous for both traits with another flower that is pink and tall. What is the percentage of the flowers being pink and short?
a)
75%
b)
25%
c)
4
d)
1/2
15.
R= red
r= green
Which color is recessive?
r= green
Which color is recessive?
a)
red
b)
green
c)
both
d)
brown
16.
circumstance where the expression of one gene is affected by the expression of one or more independently inherited genes
a)
epigenetics
b)
epistasis
c)
epigenome
d)
enzyme
17.
What type of inheritance do two alleles have if their traits blend together?
a)
Incomplete Dominance
b)
Co-Dominance
c)
Mendelian Inheritance
d)
Homozygous Inheritance
18.
A plant shows incomplete dominance in size. A tall plant (TT) is crossed with a medium plant (TS). What fraction of plants will also be tall?
a)
100 %
b)
75%
c)
50%
d)
25%
19.
A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?
a)
4: Orange and White
b)
1: Orange : 1 White
c)
2 Orange: 2 Orange and White: 0 White
d)
1: Orange: 2 Orange and White: 1 White
20.
How are Incomplete Dominance and Co Dominance different than a normal Mendelian cross?
a)
There is no difference
b)
The heterozygous genotype has a unique phenotype
c)
There is no heterozygous genotype
d)
There is only one phenotype regardless of genotype.
21.
What are the blood types of the possible children that a woman (type O) and man (type AB) can have?
a)
O and AB
b)
O and A
c)
O and B
d)
A and B
22.
When the heterozygous phenotype is a blend of the two other phenotypes, this is called...
a)
Complete Dominance
b)
Uncomplete Dominance
c)
Incomplete Dominance
d)
Homozygous Dominant
23.
When the heterozygous phenotype displays properties of both the phenotypes at the same time, this is called?
a)
Domiance
b)
Multi-Dominace
c)
Incomplete Dominace
d)
Co-Dominance
24.
When the expression of a trait is controlled by multiple alleles this is called?
a)
Epistasis
b)
Multiple Genes
c)
Multiple Alleles
d)
Multiple DNA
25.
Epistasis is when the expression of one gene is masked or modified by another _______
a)
chromosome
b)
allele
c)
gene
d)
person
26.
This is when the dominant allele is not completely dominant over the recessive allele. (A blend of the alleles will show)
a)
Co-Dominance
b)
Polygenetics
c)
Incomplete Dominance
d)
Epistasis
27.
This is when both phenotypes will be present. (Example would be a spotted cow.)
a)
Incomplete Dominanc
b)
Epistasis
c)
Codominance
d)
Polygenic
28.
Which of the following means many traits?
a)
Codominance
b)
Multi-Genetics
c)
Polygenic
d)
Incomplete Dominance
29.
Type of Trait that is controlled by MANY genes at once. Many Genes will 'contribute' to one phenotype.
a)
Multiple Allele Trait
b)
Polygenic Trait
c)
Monogenic Trait
d)
Co-Dominant Trait
30.
This graphic shows an example of...
a)
Sex Linked Trait
b)
Complete Dominance
c)
Co-Dominance
d)
Incomplete Dominance
31.
This graphic shows an example of...
a)
Sex Linked Trait
b)
Complete Dominance
c)
Co-Dominance
d)
Incomplete Dominance
100 %
