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Quiz #4

Total questions: 110

Worksheet time: 1hrs 18mins

Name
Class
Date
1.

TT an example of a....

a)

Genotype

b)

Phenotype

2.

Tt an example of a....

a)

Genotype

b)

Phenotype

3.

tt an example of a....

a)

Genotype

b)

Phenotype

4.

A flower's red color an example of a....

a)

Genotype

b)

Phenotype

5.

A dog's soft fur an example of a....

a)

Genotype

b)

Phenotype

6.

A cat's calico fur an example of a....

a)

Genotype

b)

Phenotype

7.

The genotype TT is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

8.

The genotype Tt is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

9.

The genotype tt is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

10.

The genotype GG is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

11.

The genotype Gg is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

12.

The genotype gg is considered to be....

a)

Homozygous dominant

b)

Heterozygous

c)

Homozygous recessive

13.

If red color is dominant in flowers, what would a homozygous dominant flower's genotype look like?

a)

RR

b)

Rr

c)

rr

14.

If red color is dominant in flowers, what would a heterozygous flower's genotype look like?

a)

RR

b)

Rr

c)

rr

15.

If white color is recessive in flowers, what would a homozygous recessive flower's genotype look like?

a)

RR

b)

Rr

c)

rr

16.
Which of the following is heterozygous
a)
FF
b)
tt
c)
Gg
d)
RR
17.
Which of the following is homozygous recessive?
a)
rr
b)
AA
c)
TT
d)
Ff
18.
What does the prefix homo- in homozygous mean?
a)
same
b)
different
c)
dating
d)
humans
19.
What does the prefix hetero- in heterozygous mean?
a)
same
b)
different
c)
dating
d)
human
20.
Which of the following is heterozygous
a)
Ww
b)
ii
c)
DD
d)
kk
21.
Which of the following is homozygous dominant?
a)
Jj
b)
Rr
c)
MM
d)
ee
22.
The physical appearance of a trait is known as the-
a)
genotype
b)
phenotype
c)
characteristics
d)
intelligence
23.
Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's phenotype?
a)
Brown Hair
b)
Blonde Hair
c)
Brown and Blonde Hair
d)
Black Hair
24.
Mark is heterozygous. If B is for brown hair, and b is for blonde hair, what is Mark's genotype?
a)
BB
b)
bb
c)
Bb
d)
bB
25.
Mary is heterozygous. If F for freckles, and f is for no freckles, what is Mary's phenotype?
a)
Freckles
b)
No Freckles
c)
A few Freckles
d)
One Freckle
26.
Mary is heterozygous. If F for freckles, and f is for no freckles, what is Mary's genotype?
a)
FF
b)
Ff
c)
ff
d)
fF
27.
Chris is homozygous dominant. If W for widow's peak, and w is for no widow's peak, what is Chris' phenotype?
a)
Widow's Peak
b)
No Widow's Peak
c)
A small Widow's Peak
d)
Not enough information
28.
Chris is homozygous dominant. If W for widow's peak, and w is for no widow's peak, what is Chris' genotype?
a)
WW
b)
ww
c)
Ww
d)
wW
29.
The two-letter code that describes the genetic traits of an organism is called a-
a)
Phenotype
b)
Genotype
c)
Physical Appearance
d)
Intelligence
30.

Hh

a)

Homozygous Dominant

b)

Homozygous Recessive

c)

Heterozygous

31.
TT
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Dominant
32.
rr
a)
Homozygous Dominant
b)
Homozygous Recessive
c)
Heterozygous
d)
Heterozygous Recessive
33.
Which of the following is heterozygous
a)
Dd
b)
dD
c)
DD
d)
dd
34.
Which of the following is homozygous dominant?
a)
Rr
b)
Hh
c)
ii
d)
DD
35.

Select all combinations that will create a dominant trait?

a)

Aa

b)

aa

c)

AA

d)

Pp

e)

bb

36.

A dominant allele is showed by what?

a)

A capital letter like A, B, G, or M

b)

A lower-case letter like a, b, g, or m

37.

Recessive alleles are shown using what?

a)

Capital letters like A, B, G, or M

b)

Lower-case letters like a, b, g, or m.

38.

Dominant alleles mask recessive alleles, meaning that a genotype that has both alleles will always show the dominant trait. Which of the following will show the dominant trait?

a)

AA

b)

Aa

c)

bb

d)

Gg

e)

rr

39.

The recessive allele is weak. The only way a recessive trait will show is when the organism has TWO copies of the recessive allele. Which of the following will result in the recessive trait?

a)

aa

b)

Dd

c)

PP

d)

mm

e)

Ff

40.

Which of these has a dominant allele?

a)

dd

b)

Gg

c)

RR

d)

mm

e)

Nn

41.

Which of these genotypes has recessive alleles?

a)

rr

b)

Tt

c)

HH

d)

MM

e)

Qq

42.

Which of these has a dominant allele?

a)

MM

b)

Hh

c)

gg

d)

Rr

e)

tt

43.

Which of these genotypes will allow the organism to show the recessive trait?

a)

Tt

b)

MM

c)

Ll

d)

Rr

e)

dd

44.

Which of these genotypes has a recessive allele in it?

a)

Tt

b)

hh

c)

RR

d)

MM

e)

Nn

45.

Which of these genotypes will show a dominant trait?

a)

Tt

b)

HH

c)

Mm

d)

nn

e)

Rr

46.

Dominant alleles are written with:

a)

Upper case letters

b)

Lower case letters

47.

Recessive alleles are written with:

a)

Upper case letters

b)

Lower case letters

48.

Dd would show the __________ phenotype.

a)

Dominant

b)

Recessive

c)

Both

d)

None

49.

TT and Tt will both result in the __________ phenotype showing.

a)

Dominant

b)

Recessive

c)

Both

d)

None

50.

If White phenotype is Recessive then its genotype will be

a)

aa

b)

AA

c)

Aa

d)

None of the above

51.

Select the recessive genotype

a)

TT

b)

Tt

c)

tt

d)

None

52.

Select the recessive genotype

a)

AA

b)

Aa

c)

aa

53.

Pick the dominant genotypes:

a)

AA

b)

aa

c)

Aa

d)

Gg

e)

HH

54.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
55.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
56.
What is the probability of heterozygous offspring?
a)
25%
b)
50%
c)
0%
d)
100%
57.
What allele combination should go in the missing box?
a)
AA
b)
Aa
c)
aa
d)
none of these
58.
Each one of the boxes on the Punnett Square represents what probability of an offsprings' genotype?
a)
25%
b)
1%
c)
10%
d)
0%
59.
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
60.
What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 
a)
50 % Brown Hair and 50% Blond Hair 
b)
25 % Brown Hair and 75% Blond Hair 
c)
75 % Brown Hair and 25% Blond Hair 
d)
0% Brown Hair and 100% Blond Hair 
61.
Which of the following genotypes is homozygous dominant?
a)
A
b)
Aa
c)
AA
d)
aa
62.
Which of the following genotypes is heterozygous?
a)
Bb
b)
BB
c)
bb
d)
B
63.
Which of the following is homozygous recessive?
a)
Tt
b)
tt
c)
TT
d)
T
64.
Which of the following is an example of phenotype?
a)
bb
b)
blue eyes
65.
Which of the following genotypes are purebred?
a)
Pf
b)
Pp
c)
PP
d)
pP
66.
If you are purebred dominant for a trait, your genotype would be...
a)
Tt
b)
TT
c)
tt
d)
tall
67.
Which of these is homozygous recessive?
a)
Rr
b)
rR
c)
RR
d)
rr
68.

This trait is hidden whenever the dominant allele is present

a)

dominant allele

b)

codominance

c)

recessive allele

d)

Punnett Square

69.

This trait always shows up in an organism when the allele is present

a)

dominant allele

b)

codominance

c)

probability

d)

recessive allele

70.

A chart that shows all the possible combinations of alleles that can result from a genetic cross

a)

dominant allele

b)

codominance

c)

probability

d)

Punnett Square

71.

An organism's physical appearance or visible traits. (what it looks like)

a)

phenotype

b)

genotype

72.

An organism's genetic makeup, or allele combination. The letters we use to show the allele combination.

a)

phenotype

b)

genotype

73.

B = brown fur b = white fur

In the Punnett square, what is the probability for white fur?

a)

0%

b)

25%

c)

50%

d)

75%

74.

What is a genotype?

4 lines
75.

What is a phenotype?

4 lines
76.

What is are alleles?

4 lines
77.

What does dominant mean?

4 lines
78.

What does recessive mean?

4 lines
79.

An organism's ______ is determined by its ______.

a)

genotype; phenotype

b)

dominant; recessive

c)

recessive; dominant

d)

phenotype; genotype

80.

Each genotype has two (a)  

81.

The (a)   allele will always be expressed when it is present.

82.

This model represents ______ reproduction

a)

sexual

b)

asexual

83.

This model represents ______ reproduction

a)

sexual

b)

asexual

84.

How many parents are needed for asexual reproduction?

a)

1 parent

b)

2 parents

85.

How many parents are needed for sexual reproduction?

a)

1 parent

b)

2 parents

86.

True or False: During asexual reproduction, the offspring is identical to the parent.

a)

True

b)

False

87.

During sexual reproduction the offspring is _______ to the parent.

a)

Identical

b)

Genetically different

88.
Genes are the basic unit of heredity. Genetic information is encoded in a linear sequence of
a)
nucleic acids.
b)
amino acids.
c)
carbohydrates.
d)
fatty acids.
89.
The diagram represents a molecule of 
a)
DNA
b)
ATP
c)
FSH
d)
RNA
90.

What shape is DNA?

a)

a circle

b)

a triangle

c)

a double helix

91.

What is a gene?

a)

A bundle (like a hot dog bun) that the DNA is packed into

b)

something inside the nucleus

c)

a section/piece of DNA

d)

all of your DNA

92.

DNA contains

a)

Protein producing ribosomes

b)

the genetic code for all life forms

c)

Cytoplasm in the cell

93.

Which organelle is DNA usually found in?

a)

cell membrane

b)

vacuole

c)

chloroplast

d)

nucleus

94.

What is the name of this structure found in our nucleus?

a)

chromosome

b)

gene

c)

ribosome

d)

DNA

95.

Both a rose bush and a muskrat have 25 chromosomes but they look very different. Which of the following best explains why they do not look the same?

a)

They belong to different kingdoms

b)

They have a different number of cells

c)

They have different life cycles

d)

They have different genes

e)

They are different sizes

96.

Where is the genetic information stored in dolphins and sharks?

a)

Only in the skin cells

b)

Only in the reproductive cells

c)

In its environment

d)

In all of its cells

e)

Only in blood cells

97.

If one leaf cell in a tree contains 40 chromosomes, how many chromosomes are there in a root cell from this same tree?

a)

15

b)

20

c)

30

d)

40

e)

80

98.

Twins have the same blood type. Which of the following best explains why this happens?

a)

They are born together

b)

They have the same genes

c)

They are brought up in the same manner

d)

They develop together inside their mother's womb.

e)

They have the same parents

99.

A rancher crossed an angus bull with a Holstein cow to produce a mixed breed. The calf will most likely resemble _______

a)

the father

b)

the mother

c)

Both father an mother

d)

Neither the father or the mother.

e)

the grandparents

100.

Both a cactus and a sloth have 21 chromosomes but they look very different. Which of the following best explains why they do not look the same?

a)

They belong to different kingdoms

b)

They have a different number of cells

c)

They have different life cycles

d)

They have different genes

e)

They are different sizes

101.

Refers to the two alleles inherited for a particular genes.

a)

genetype

b)

genes

c)

phenotype

d)

recessive

102.

If two alleles are the same for a certain trait they are considered

a)

Homozygous

b)

Twins

c)

Heterozygous

d)

Common

103.

Physical traits that are expressed are known as ____________

a)

Mutation

b)

Personality

c)

Genotype

d)

Phenotype

104.

Traits that are passed from parents to offspring are always

a)

Recessive

b)

Inherited

c)

Dominant

d)

Heterozygous

105.

The passage of genetic instructions from one generation to the next is known as

a)

Alleles

b)

Ancestry

c)

Heredity

d)

Variation

106.

The genetic difference between individuals in the same species is

a)

Interesting

b)

Harmful

c)

Variation

d)

Genetics

107.

The genes of an organism that are written with capital or lowercase letters

a)

Pant size

b)

Deoxyribonucleic acid

c)

Genotype

d)

Gretchentype

108.

If a gene is always expressed or always shown with a capital letter it is

a)

Bossy

b)

Recessive

c)

Yelling

d)

Dominant

109.

Different versions of the same gene are called

a)

Jeans

b)

Editions

c)

Varieties

d)

Alleles

110.

This variation of a gene can only be expressed if it is received from both parents

a)

Shy

b)

Heterozygous

c)

Variation

d)

Recessive

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