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U5L 2&3 EXAM PREP

Total questions: 113

Worksheet time: 4hrs 57mins

Name
Class
Date
1.
In watermelons, green rinds (G) are dominant to striped rinds (g).  What is the genotype of a heterozygous green watermelon?
a)
GG
b)
Gg
c)
gg
d)
green
2.
In cacti, long arms (A) are dominant to short arms (a).  Suppose 2 heterozygous cacti are crossed.  What percentage of their offspring are expected to have short arms?
a)
0%
b)
25%
c)
75%
d)
100%
3.
One of the two forms of a gene is called a(n)
a)
genotype
b)
allele
c)
hybrid
d)
trait
4.
When a person has two different alleles for a gene, they are said to be
a)
heterozygous
b)
homozygous
5.
A __________ allele always shows up in an organism when the it is present.
a)
dominant
b)
hybrid
6.
In this example, the child displays the ________ trait.
a)
dominant
b)
recessive 
7.
How many alleles (letters) do each person carry for a trait?
a)
1
b)
2
c)
3
d)
4
8.
How many alleles (letters) does a child get from each parent for each trait?
a)
1
b)
2
c)
3
d)
4
9.
Dominant alleles are represented by a:
a)
Male gene
b)
lowercase letter
c)
recessive trait
d)
capital letter
10.
Aa, DD, bB, yy are all examples of
a)
genotypes
b)
phenotypes
11.
aa always shows up as
a)
dominant
b)
recessive
12.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
13.
Which of the following is a phenotype?
a)
Aa
b)
red hair
c)
heterozygous
d)
DNA
14.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
15.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
16.
What are the possible genotypes for this cross?
a)
TT = 25% Tt= 50% tt=25%
b)
all tall
c)
TT= 75% tt = 25%
d)
Tt = 100%
17.
If green is dominant over purple, then what is the genotype for this individual?
a)
Purple
b)
Green
c)
GG
d)
gg
18.
the physical characteristics that result from genes
a)
phenotype
b)
genotype
c)
heterozygous
d)
homozygous
19.

If a homozygous dominant allele (AA) is crossed with a homozygous recessive allele (aa), all of the resulting offspring will be

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous Recessive

20.

In guinea pigs, the allele for short hair is dominant. If all the guinea pigs are born short haired what are the possible genotypes of the parents? (There are two possible combinations.)

a)

Ss + Ss

b)

SS + SS

c)

SS + Ss

d)

ss + ss

21.
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
22.

(Grey fur (G) is dominant over white fur (g) and Black eyes (B) are dominant over red eyes(b))

A male rabbit GGbb crossed with a female rabbit with ggBb.


How many out of 16, have grey fur and black eyes?

a)

4

b)

8

c)

12

d)

16

23.

(Grey fur (G) is dominant over white fur (g) and Black eyes (B) are dominant over red eyes(b))

A male rabbit GGbb crossed with a female rabbit with ggBb.


How many out of 16, have grey fur and red eyes?

a)

4

b)

8

c)

12

d)

16

24.

(Grey fur (G) is dominant over white fur (g) and Black eyes (B) are dominant over red eyes(b))

A male rabbit GGbb crossed with a female rabbit with ggBb.


How many out of 16, have white fur and black eyes?

a)

0

b)

4

c)

8

d)

16

25.
What goes in box 1
a)
AABb
b)
AABB
c)
aabb
d)
AaBb
26.
What goes in box 3
a)
Aabb
b)
AABB
c)
AAbb
d)
aaBb
27.

How can two parents with brown eyes have a child with blue eyes?

a)

The parents may both have a recessive gene for blue eyes.

b)

The child was born during the winter

c)

Eye color in humans is not an inherited trait

d)

The child was deprived of oxygen during its birth

28.
Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r  = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds? 
a)
0%
b)
25%
c)
50%
d)
100%
29.

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds

a)

9/16

b)

3/16

c)

1/16

d)

16/16

30.
What genotype is missing from this Punnett Square?
a)
RrYy
b)
RRYY
c)
rryy
d)
RrYY
31.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
32.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
33.
parent 1: GgBB
parent 2: ggBb
Find the gametes for parent 1.
a)
GB, GB, gB, gB
b)
gB, gb, gB, gb
c)
Gg, BB, GB, GB
d)
gg, Bb, gB, gb
34.
R= red 
r= green
Which color is recessive?
a)
red
b)
green
c)
both
d)
brown
35.
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.
36.

Which of the following is a homozygous recessive genotype?

a)

HH

b)

dd

c)

Aa

37.

Which of the following is a Homozygous Dominant Genotype?

a)

Yy

b)

YY

c)

yy

38.

Which of the following is a heterozygous genotype?

a)

Gg

b)

UU

c)

pp

39.

Fill in the Yellow Box

a)

AA

b)

Aa

c)

aa

40.

In a Punnett Square, 1 box is equal to 25%. How much are 3 boxes equal to?

a)

25%

b)

50%

c)

75%

d)

100%

41.

Fill in the Yellow Box

a)

Bb

b)

BB

c)

bb

42.

What chance the offspring born from this cross will have a homozygous dominant genotype?

a)

25%

b)

50%

c)

75%

d)

100%

43.

The punnett square is used to tell the color of a frogs skin. "G" means green skin and "g" means brown skin. What is the chance the baby frogs will have brown skin?

a)

0%

b)

25%

c)

50%

d)

100%

44.

What is the mother's genotype?

a)

DD

b)

Dd

c)

dd

45.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
46.
Which choice best represents the genotype of this cross?
a)
1 Yy: 2 yy: 0 YY
b)
2 Yy: 2 yy: 0 YY
c)
3 Yy: 1 yy: 0 YY
d)
1 Yy: 3 yy: 0 YY
47.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
48.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
49.

In a heterozygous genotype, the ___________ allele takes over in the phenotype.

a)

recessive

b)

dominant

c)

both

50.
What are genes?
a)
Something you wear.
b)
Segments of DNA that carry traits for offspring.
c)
The powerhouse of cells.
d)
None of the above.
51.
Which of the following is an example of phenotype?
a)
bb
b)
blue eyes
52.

The different forms of a gene

a)

alleles

b)

atoms

c)

proteins

d)

wheels

53.

An organism that has two identical (THE SAME) alleles for a trait (purebred)

a)

homozygous

b)

heterozygous

54.

An organism that has two different alleles for a trait (hybrid)

a)

homozygous

b)

heterozygous

55.
If T=Tall & t=short, what is the genotypic ratio?
a)
1:3
b)
3:1
c)
1:2:1
d)
2:2
56.

During meiosis and gamete formation, homologous (paired up) alleles split up

a)

Phenotype

b)

Law of Segregation

c)

Genotype

d)

Dihybrid Cross

57.

During meiosis, the homologous pairs of chromosomes and the matching alleles are lined up independently.

Offspring are a mix of maternal genes and paternal genes.

This increases genetic variation.

a)

Homozygous Dominant

b)

Law of Segregation

c)

Crossing Over

d)

Independent Assortment

58.

Referring to the original parents.

a)

P1

b)

F1

c)

F2

d)

Homozygous

59.

First Filial (child) Generation: the offspring of P1

a)

P1

b)

F2

c)

F1

d)

Heterozygous

60.

Second Filial Generation: the offspring of F1

a)

P1

b)

F1

c)

F2

d)

Homozygous Recessive

61.

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

62.

Based off this punnett square, what fraction of the offspring will have wrinkled, green seeds?

a)

9/16

b)

3/16

c)

1/16

d)

16/16

63.

What is the expected phenotypic ratio of a dihybrid cross between two heterozygous individuals?

a)

12 : 3 : 1

b)

9 : 6 : 1

c)

16 : 0 : 0 : 0

d)

9 : 3 : 3 : 1

64.
If this image were real, it would represent what type of inheritance?
a)
incomplete dominance
b)
codominance
c)
polygenic inheritance
d)
compete dominance
65.
AB blood type is an example of what type of inheritance?
a)
complete dominance
b)
incomplete dominance
c)
codominance
d)
polygenic inheritance
66.
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%
67.
An offspring will receive how many alleles from each parent to determine a specific trait?
a)
one
b)
two
c)
three
d)
five
68.
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
69.
This is an example of ___________?
a)
Incomplete dominance
b)
Co-Dominance
70.
In a Punnett square each box represents a(n)....
a)
offspring
b)
parent
c)
gene
d)
trait
71.
What type of inheritance is shown?
a)
complete
b)
incomplete
c)
codominance
d)
sex-linked
72.
What do you call the non-Mendelian inheritance pattern that states that neither trait is dominant and the traits appear to blend together?
a)
Codominance
b)
Incomplete dominance
c)
Polygenic traits
73.
In butterfly bushes, dark purple and pink parents will produce offspring with lavender flowers. This is a result of 
a)
codominance
b)
incomplete dominance
c)
complete dominance
d)
recessive dominance
74.

This is an example of (a)   ?

75.

What type of inheritance do two alleles have if their traits blend together?  (a)  

Choose from the below words
Incomplete Dominance
Co-Dominance
76.

When one allele is not dominant over the other, resulting in both traits expressed in a heterozygous individual (a)  

Choose from the below words
Incomplete Dominance
Codominance
77.

Some flowers are controlled by codominance. Red flowers (RR), blue flowers (BB) and Speckled flowers (RB). What would the offspring look like if you crossed a red flower and a speckled flower (a)  

Choose from the below words
2 red, 2 speckled
2 red, 2 blue
2 blue, 2 speckled
78.

In mice coat color is incompletely dominant. Black and white are homozygous. Brown mice are heterozygous. What would the heterozygous offspring look like genotypically (a)  

Choose from the below words
Bb
BB
bb
79.

In cattle red coats are represented as RR, and white coats are represented as WW. What would the genotypes be of offspring of a white coated cow and a brown coated cow. (a)  

Choose from the below words
RW
RR
WW
80.

this image is an example of (a)  

Choose from the below words
codominance
dominance
incomplete dominance
81.

this image is an example of (a)  

Choose from the below words
codominance
dominance
incomplete dominance
82.

A calico cat shows both the traits for orange fur and black fur. What kind of allele expression is this? (a)  

Choose from the below words
Incomplete Dominance
Co dominance
Independent assortment
Recessive inheritance
83.
How many alleles does an individual have for each trait?
84.

The different forms of a gene are called (a)  

Choose from the below words
traits
pollinators
alleles
hybrids
85.

This type of inheritance pattern shows BOTH traits in possible offspring (a)  

Choose from the below words
complete dominance
incomplete dominance
co-dominance
dominant pattern
86.

This is an example of (a)   .

87.

A woman with curly hair and a man with straight hair produced a child with wavy hair: (a)  

Choose from the below words
Incomplete dominance
Codominance
Complete dominance
88.

X and Y are ​​ (a)   chromosomes. Females are ​ (b)   and males are ​ (c)   .

Choose from the below words
SEX
XX
XY
Autosomes
46
23
89.

In fruit flies, eye color is a sex-linked trait.  Red (R) is dominant to white (r).

Which genotype shows a female fly with white eyes?

a)

XRXrX^{R^{ }}X^r

b)

X r X rX^{\ r\ }X\ ^r

c)

X r Y X^{\ r\ }Y\ ^{ }

d)

 X R Y\ X^{\ R\ }Y

90.

Which genotype shows a male with white eyes?

R = Red, r= white

a)

X r X rX^{\ r\ }X\ ^r

b)

X R X rX^{\ R\ }X\ ^r

c)

X r Y X^{\ r\ }Y\ ^{ }

d)

X R Y X^{\ R\ }Y\ ^{ }

91.

Match the following. H= no hemophilia, h = hemophilia

a)

Male without hemophilia

1.

XHY

b)

Female with hemophilia

2.

XhXh

c)

Female Carrier

3.

XH Xh

d)

Male with hemophilia

4.

XhY

e)

Female who is NOT a carrier

5.

XHXH

92.

Which of the following genotypes belongs in the red box in the Punnett square? (a)  

Choose from the below words
XBXb
XbXb
XbY
XBY
93.

The following punnett square depicts the x-linked cross of a female who carries hemophilia with a man showing no symptoms. Fill in the genootype represented by the blank box in the punnett square. (a)  

Choose from the below words
XH XH
Xh XH
XH Y
Xh Y
94.

Hemophilia is a recessive x-linked disorder. Which genotype represents a female who is a carrier for hemophilia? (a)  

Choose from the below words
XHXh
XhXh
XHXH
XhY
95.

What is the likelihood of this cross have a child that is colorblind? (a)  

Choose from the below words
100%
75%
50%
25%
96.

What is the chance that a daughter will be colorblind? (a)  

Choose from the below words
100%
50%
25%
0%
97.

What chance will a boy will be colorblind? (a)  

Choose from the below words
100%
50%
25%
0%
98.

Who is more likely to have an X-linked trait? (a)  

Choose from the below words
Males
Females
Both males and females
99.

​ (a)   are more likely to have an x-linked trait because males have only ​ (b)   X chromosome. Females can be ​ (c)   of an X-linked trait because they can be ​ (d)   for the trait since they have ​ (e)   X's.

Choose from the below words
Males
one
carriers
heterozygous
two
homozygous
Females
Dominant
Recessive
100.

What are the 4 possible phenotypes for human blood type?

a)

Type A

b)

Type B

c)

Type BB

d)

Type AB

e)

Type O

101.

If a person has type B blood, the phenotype is B. What can the genotype be? (a)  

Choose from the below words
IBIB or I
IAIA or I
IAIB
ii
102.

If a person has type A blood, the phenotype is A. What can the genotype be? (a)  

Choose from the below words
IBIB or I
IAIA or I
IAIB
ii
103.

If a person has type AB blood, the phenotype is AB. What can the genotype be? (a)  

Choose from the below words
IBIB or I
IAIA or I
IAIB
ii
104.

If a person has type O blood, the phenotype is O. What can the genotype be? (a)  

Choose from the below words
IBIB or I
IAIA or I
IAIB
ii
105.

if the father is type A and the mother is type B, in order for baby Sylvester to have the genotype ii, his parents must be? (a)  

Choose from the below words
heterozygous
homozygous
106.

There are multiple alleles for the ABO blood group. Why are only two of these alleles present in any one individual?

a)

Each parent contributes only one allele for the ABO blood group to the offspring.

b)

There are not enough nucleotides in a red blood cell to produce a third allele.

c)

Each allele in the ABO group must be dominant or recessive

d)

Blood group alleles are not segregated during meiosis.

107.

What is NOT a possible genotype for someone with type B blood? (a)  

Choose from the below words
BB
AB
BO
108.

What is the genotype of a person with type A blood, who had a father with type O blood? (a)  

Choose from the below words
AB
AO
AA
OO
109.

The physical appearance of an organisms is its (a)  

Choose from the below words
Genotype
Phenotype
characteristic
Heterozygous
110.

The different forms of a gene are called (a)  

Choose from the below words
traits
pollinators
alleles
hybrids
111.

For the square that has OO in the bottom right. What would be the missing allele on the top? (A (a)   )

112.

If two parents have type AB blood, what is the probability that their child will have type O blood? (a)  

Choose from the below words
0%
25%
50%
100%
113.

If a father is AA and a mother is AB, what is the probability for a child with AB blood?  (a)  

Choose from the below words
0%
25%
50%
75%

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