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WorksheetsGenetics Review
Total questions: 21
Worksheet time: 23mins
Name
Class
Date
1.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
2.
Which of the following is a phenotype?
a)
BB
b)
Bb
c)
bb
d)
Blue eyes
3.
Two brown eyed parents (Bb) have a baby. What is the chance the baby is blue eyed?
a)
0 %
b)
25%
c)
50%
d)
75%
4.
Snapdragon flowers come in red, pink and white. What type of inheritance is this?
a)
Complete Dominance
b)
Incomplete Dominance
c)
Codominance
d)
Polygenic Inheritance
5.
Brown fur color is dominant over black fur color. Which of the following is the actual genotype of ALL of the offspring in the next generation of this cross for fur color?
AA x aa
AA x aa
a)
AA
b)
Aa
c)
aa
d)
brown fur
6.
Dominant alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
7.
Recessive alleles are-
a)
capital
b)
lowercase
c)
both
d)
neither
8.
Tt is-
a)
homozygous dominant
b)
homozygous recessive
c)
heterozygous
d)
none of these
9.
When you cross two parents, each parent is responsible for passing _______ of their two alleles for each individual trait.
a)
1
b)
2
c)
3
d)
4
10.
Grey (G) fur is dominant to brown (g) fur in mice. What would be the genotype of a mouse that is homozygous dominant?
a)
GG
b)
Gg
c)
gg
d)
GGG
11.
Grey (G) fur is dominant to brown (g) fur in mice. What would be the genotype of a mouse that is heterozygous?
a)
GG
b)
Gg
c)
gg
d)
GGG
12.
What is AA
a)
Homozygous Dominant
b)
Heterozygous
c)
Homozygous Recessive
d)
Heterozygous dominant
13.
What is aa
a)
Homozygous Dominant
b)
Heterozygous
c)
Homozygous Recessive
d)
Heterozygous dominant
14.
The physical look or the organism, such as brown eyes
a)
genotype
b)
phenotype
c)
Dominant
d)
Recessive
15.
G = green, g = yellow
The genotype for a yellow plant is...
The genotype for a yellow plant is...
a)
GG
b)
Gg
c)
gg
d)
all of the choices result in yellow
16.
An allele whose trait only shows up when no dominant allele is present.
a)
hidden allele
b)
dominant allele
c)
recessive allele
d)
present allele
17.
Which of the following terms refers to the different possibilities of a gene?
a)
chromosome
b)
DNA
c)
Punnett Squares
d)
allele
18.
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
19.
A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this?
a)
Incomplete Dominance
b)
Co dominance
c)
Independent assortment
d)
Recessive inheritance
20.
A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance. What percentage of the offspring will have pink (RW) flowers?
a)
0%
b)
25%
c)
50%
d)
100%
21.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
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