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Unit 5 - Test Quiz Review

Total questions: 168

Worksheet time: 4hrs 25mins

Name
Class
Date
1.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
2.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
3.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
4.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
5.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
6.
Cytosine always pairs with
a)
Adenine
b)
Thymine
c)
Uracil
d)
Guanine
7.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
8.
Which of the following units are repeatedly joined together to form a strand of DNA? (This is the MONOMER of DNA.) 
a)
amino acids
b)
nucleotides
c)
fatty acids
d)
polysaccharides
9.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
10.
Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG
a)
ATG TGA CAG
b)
TAC ACT GTC
c)
GTA AGT GAC
d)
CAT TCA CTG
11.
The enzyme that unwinds the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
12.
DNA replication results in two DNA molecules,
a)
each one with two original strands
b)
each one with two new strands
c)
each one with one new strand and one original strand
d)
one with two new strands and the other with two original strands
13.
order of replication
a)
3, 4, 2, 1
b)
3, 1, 4, 2
c)
2, 1, 4, 3
d)
3, 4, 1, 2
14.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
15.
Which enzyme is responsible for adding nucleotides?
a)
Topoisomerase
b)
DNA Polymerase
c)
Ligase
d)
Primase
16.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
17.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
18.
What is the complement to the DNA strand below:
5'-ATGCCAT-3'
a)
5'-TACGGTA-3'
b)
3'-TACGGTA-5'
c)
3'-ATGGCAT-5'
d)
5'-ATGGCAT-3'
19.
What is the significance of the sequence (order) of the Nitrogen Bases in DNA?
a)
The order of the Nitrogen Bases determines the number of chromosomes present in an organism.
b)
The order of the Nitrogen Bases determines the traits that an organism will possess (have).
c)
The order of the Nitrogen Bases determines the gender of an organism.
d)
The order of the Nitrogen Bases determines whether an organism is abiotic biotic.
20.
Assume that you have straight hair and your sibling has curly hair. What accounts for this difference?
a)
You have DNA and your sibling does not.
b)
The your sequence of nitrogen bases is different than your sibling.
c)
Your sibling has a weave. 
d)
Your sibling has a genetic mutation. 
21.

How is the instructions for your traits carried on a DNA molecule?

a)

Sequence of the nitrogen bases

b)

In the Deoxyribose Sugar

c)

In the bond between the phosphate and the sugar

d)

In the phosphate group

22.

DNA is an acronym for _____

a)

Diphosphorus Nucleic Acid

b)

Ribose Nucleic Acid

c)

Deoxyribonucleic Acid

d)

Deoxyribonucleic Acetate

23.
Which of the following statements describes processes that occur during DNA replication?
a)
A DNA sequence is read by RNA polymerase, which produces another RNA strand complementary to the first strand.
b)
Two free-floating single strands of DNA are joined by polymerase. The polymerase finds the point at which the two strands will match up into a double strand.
c)
Messenger RNA are decoded by a ribosome to produce an amino acid chain. In the cell's cytoplasm, transfer RNA join the messenger RNA, forming a polypeptide.
d)
A double-stranded DNA molecule is unwound into single strands. Polymerase matches the right nucleotides to the single strand so that each forms a double strand of DNA.
24.
The enzyme that unwinds the DNA to prepare for replication
a)
helicase
b)
replicase
c)
polymerase
d)
synthase
25.
A process in which DNA has the unique ability to make an exact copy of itself.
a)
Replication
b)
Translation
c)
Transcription
26.

DNA replication results in

a)

2 completely new DNA molecules

b)

2 DNA molecules that each contain a strand of the original

c)

1 new DNA molecule and 1 old

d)

1 new molecule of DNA

27.

Enzyme that connects the DNA to the backbone (glues)

a)

Ligase

b)

Polymerase

c)

Helicase

d)

Primase

28.

Enzyme that breaks hydrogen bonds (unzips)

a)

Ligase

b)

Polymerase

c)

Primase

d)

Helicase

29.

The new DNA strand formed after DNA replication is an exact copy of its parent strand

a)

True

b)

False

30.

#1 in the picture above (builder)

a)

Helicase

b)

Primase

c)

Polymerase

d)

Ligase

31.

#4 in the picture

a)

Polymerase

b)

Primase

c)

Helicase

d)

Ligase

32.

Number 1 in the picture above

a)

Replication

b)

DNA Polymerase

c)

Primase

d)

Ligase

33.

#3 setting Primers

a)

Ligase

b)

Helicase

c)

Polymerase

d)

Primase

34.
What are the gaps between the newly synthesized DNA on the lagging strand called?
a)
Okazaki fragments
b)
Polymer gaps
c)
Helicase fragments
d)
Acidic gaps
35.
A DNA nucleotide contains all of the following, except...
a)
Deoxyribose
b)
Phosphate group
c)
Nitrogenous base
d)
Cholesterol
36.
What is the shape of DNA?
a)
Double helix
b)
Triple helix
c)
Flat, bilayer
d)
Three-pronged rigid ladder
37.
If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?
a)
30
b)
15
c)
20
d)
60
38.
The bonds that hold the two strands of DNA together come from...
a)
the attraction of phosphate groups 
b)
strong bonds between  bases and sugars
c)
carbon to carbon bonds in the sugar
d)
weak hydrogen bonds between the bases
39.
What is responsible for holding the two strands of the DNA double helix together?
a)
hydrogen bonds
b)
alleles
c)
London dispersion forces
d)
deoxyribose sugars
40.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
41.
After analyzing a sample of DNA, a scientist recorded the data shown in the table. What percentage of the DNA sample is cytosine?
a)
22%
b)
25%
c)
28%
d)
56%
42.

The fragments on the lagging strand that are made up of repeating segments of DNA and RNA Primers

a)

okazaki fragments

b)

Primase

c)

Polymerase

d)

unused DNA

43.

Which of the following best describes the arrangement of the sides of the DNA molecule

a)

Bonding

b)

Alternating

c)

Anitparallel

d)

Parallel

44.

DNA polymerase moves in the _________ to ____________ direction

a)

3' to 5'

b)

easiest

c)

5" to 3"

d)

9 to 5

45.

Proteins that DNA winds itself around to for Chromosomes

a)

Histone

b)

Double Helix

c)

Chromatin

d)

Chromatin

46.

Entire Picture

a)

Lagging Strand

b)

Leading Strand

c)

Replication fork

d)

Okazaki Fragment

47.

Right Hand Side

a)

Lagging strand

b)

Leading Strand

48.

Built models to determine that DNA was a double helix shape with base pairs A-T and G-C in rungs between the sugar/phosphate backbone of DNA.

a)

Watson & Crick

b)

Franklin

c)

Wilkins

d)

Pauling

e)

Chargaff

49.

Worked on DNA imaging techniques and published Franklin's x-ray crystallography image of DNA

a)

Watson & Crick

b)

Franklin

c)

Wilkins

d)

Pauling

e)

Chargaff

50.

Provided clear x-ray crystallography images of DNA

a)

Watson & Crick

b)

Franklin

c)

Wilkins

d)

Pauling

e)

Chargaff

51.

Discovered that there was the same amount of A and T in a cell, and C and G in a cell.

a)

Watson & Crick

b)

Franklin

c)

Wilkins

d)

Pauling

e)

Chargaff

52.

made up of a long strand of DNA that is bonded to proteins in a way that makes them condense/fold to form chromosomes

a)

genetics

b)

chromosome

c)

proteins

d)

DNA

53.

a piece of a chromosome that is composed of specific nucleotide sequences of DNA

a)

chromatid

b)

nucleotide

c)

gene

d)

circular DNA

54.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
55.

Which bond is present in the sugar and phosphate group in a nucleotide?

a)

Phosphodiester bond

b)

Peptide Bond

c)

Ester Bond

d)

Glycosidic Bond

56.

What type of bond links two nitrogenous bases?

a)

Peptide bond

b)

Hydrogen Bond

c)

Covalent Bond

d)

Glycosidic Bond

57.

Purines:

a)

Double ringed structures

b)

Single ringed structures

58.

Pyrimidines:

a)

Double ringed structure

b)

Single ringed structure

59.
What is the cell cycle?
a)
The gradual development of something, especially from a simple to a more complex form.
b)
The study of heredity and the variation of inherited characteristics.
c)
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
d)
The series of events that take place in a cell leading to its division and duplication of its DNA to produce two daughter cells.
60.
Which part of the Cell Cycle takes the longest?
a)
Interphase
b)
Mitosis
c)
Prophase
d)
Cytokinesis
61.
What happens in the first part of Interphase?
a)
Mitosis
b)
Cell Growth
c)
DNA Replication
d)
Anaphase
62.
What part of the cell cycle results in the splitting of the new cells?
a)
Interphase
b)
Mitosis
c)
Metaphase
d)
Cytokinesis
63.
What does DNA Replication mean?
a)
DNA is made.
b)
DNA makes new cells. 
c)
DNA copies itself.
d)
DNA starts the cell cycle.
64.
True or False. 
After a cell goes through cytokinesis, it starts mitosis all over again.
a)
True
b)
False
65.
What phase is this cell in?
a)
Cytokinesis
b)
Mitosis
c)
Prophase
d)
Metaphase
66.
What phase is this cell in?
a)
Mitosis
b)
Interphase
c)
Anaphase
d)
Telophase
67.
What phase is this cell in?
a)
Mitosis
b)
Cytokinesis
c)
Prophase
d)
Telophase
68.
What phase is this cell in?
a)
Mitosis
b)
Interphase
c)
Prophase
d)
Telophase
69.
What part of the cell cycle is this cell in?
a)
Mitosis
b)
Interphase
c)
Telophase
d)
Cytokinesis
70.
What is the longest phase in MITOSIS?
a)
Prophase
b)
Metaphase
c)
Interphase
d)
Anaphase
71.
In what phase does chromatin condense to form chromosomes?
a)
Mitosis
b)
Interphase
c)
Prophase
d)
Anaphase
72.
In what phase do the chromosomes get pulled apart into sister chromatid to opposite sides of the cell?
a)
Prophase
b)
Interphase
c)
Metaphase
d)
Anaphase
73.
What can the cell cycle also be called?
a)
Cell growth
b)
DNA Replication
c)
Preparation for Mitosis
d)
Cell Divison
74.

Which phase of the cell cycle shows two Nuclear membranes forming around chromosomes?

a)

Anaphase

b)

Telophase

c)

Prophase

d)

Metaphase

75.

Which phase of the cell cycle shows two Nuclear membranes forming around chromosomes?

a)

Anaphase

b)

Telophase

c)

Prophase

d)

Metaphase

76.
In mitosis, the two resulting cells are
a)
different from the starting cell and identical to each other.
b)
different from the starting cell and different from each other.
c)
identical to the starting cell and different from each other.
d)
identical to the starting cell and identical to each other.
77.
Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have -
a)
16 chromosomes.
b)
46 chromosomes.
c)
8 chromosomes.
d)
4 chromosomes.
78.
Where does a cell contain it's genetic material?
a)
nucleus
b)
nucleolus
c)
cytoskeleton
d)
golgi
79.

Which of the following is/are results of the cell cycle ?

a)

growth

b)

repair of damaged cells

c)

replacement of dying cells.

d)

All of the above

80.
Put the following stages of mitosis in order: anaphase, prophase, metaphase, and telophase. 
a)
prophase, metaphase, telophase, anaphase
b)
prophase, anaphase, metaphase, telophase
c)
prophase, metaphase, anaphase, telophase
d)
prophase, telophase, metaphase, anaphase
81.
Put the following actions in order: DNA replicates, cell grows, cell divides, cell prepares for mitosis. 
a)
DNA replicates, cell grows, cell prepares for mitosis, cell divides
b)
cell grows, cell prepares for mitosis, DNA replicates, cell divides
c)
cell grows, DNA replicates, cell prepares for mitosis, cell divides
d)
DNA replicates, cell prepares for mitosis, cell grows, cell divides
82.
Before cells can divide, what must be copied?
a)
mitochondria
b)
cytoplasm
c)
DNA
d)
Cell Wall
83.

Humans have ________ pairs of chromosomes.

a)

21

b)

23

c)

46

d)

None of the above

84.
Uncontrollable cell growth is known as _____
a)
obesity
b)
cancer
c)
diabetes
d)
hepatitis
85.
Each identical side of a chromosome is the 
a)
centromere
b)
chromatin
c)
centriole
d)
chromatid
86.
The structure that holds two chromosomes together until they separate for cell division is the
a)
chromatid
b)
chromatin
c)
centromere
d)
cytoplasm
87.

A _______ is a segment of DNA that codes for a specific protein or RNA molecule.

a)

gene

b)

gamete

c)

chromosome

d)

chromatid

88.

A _________ is DNA tightly coiled around proteins.

a)

gene

b)

chromosome

c)

trait

d)

mutation

89.

How many chromosomes does a human body cell have, total?

a)

48

b)

46

c)

23

d)

47

90.

Chromosomes that are paired by size and content are called _______ chromosomes.

a)

homeostasis

b)

homologous

c)

matching

d)

sister

91.
Which of the following is the correct acronym for the stages of the cell cycle?
a)
IPMATC
b)
MPIATC
c)
CAPMIT
d)
IMATCP
92.
Cells spend 90% of their time in this stage of the cell cycle. This is the reason you would see most cells in this stage if viewed under a microscope.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Interphase
93.
What type(s) of cells undergo mitosis?
a)
sex cells
b)
gametes
c)
body cells
d)
sperm and egg cells
94.
Identify the stage of the cell cycle while looking at the picture.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
95.
Identify the stage of the cell cycle while looking at the picture.
a)
Early Prophase
b)
Late Propahse
96.
Identify the stage of the cell cycle while looking at the picture.
a)
Prophase
b)
Metaphase
c)
Anaphase
d)
Telophase
97.
A new organism is produced from one parent organism.
a)
Sexual Reproduction
b)
Asexual Reproduction
98.
Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents
a)
1,1
b)
2,2
c)
2,1
d)
1,2 
99.

Reproducing asexually will produce offspring ...

a)

genetically different from each other

b)

genetically identical to the parent

100.
The genetic instructions are found in ---- within the DNA
a)
traits
b)
chromosomes
c)
genes
d)
DNA
101.
Most single-celled organisms...
a)
reproduce asexually
b)
reproduce sexually
c)
have complex tissues
d)
can be seen without a microscope
102.
Cancer creates abnormal cells by disrupting
a)
the cell cycle
b)
red blood cell formation
c)
DNA replication
d)
ATP synthesis
103.
An abnormal mass of cancer cells is called a 
a)
tumor
b)
cyst
c)
lesion
d)
polyp
104.
Any substance that is known to cause cancer is called a
a)
carcinogen
b)
nicolyte
c)
pathogen
d)
retrovirus
105.
Metastasis is
a)
the spread of cancer from one part of the body to another.
b)
the growth of tumors in the lungs
c)
cancer of the blood cells
d)
cancer that is found in connective tissues
106.
Using drugs or medicines to destroy cancer cells.
a)
chemotherapy
b)
radiation therapy
c)
cancer surgery
d)
mitotic spindling
107.
Cancer is
a)
a premature stop in the cell cycle.
b)
uncontrolled mitosis.
c)
programmed cell death.
108.
Which of the following can lead to uncontrolled cell growth (cancer)? 
a)
Proto-oncogene 
b)
Oncogene
c)
Tumor suppressor gene
d)
DNA repair system 
109.
Which term below describes a "spontaneous change in a gene?" 
a)
mutation 
b)
malignant 
c)
metastasize 
d)
carcinogen 
110.

Apoptosis is

a)

the process of programmed cell death

b)

the process of programmed cell growth

c)

the process of programmed cell birth

d)

the process of programmed cell regulation

111.

Cyclin is a family of proteins that regulates what?

a)

Mitosis

b)

Meiosis

c)

Cell Cycle

d)

Interphase

112.

Which is a function of cyclins?

a)

Cyclins are carbohydrates that regulate DNA replication during the mitosis phase of the cell cycle.

b)

Cyclins are glycoproteins that repair DNA in the beginning of cell cycle.

c)

Cyclins are proteins that regulate when and how often a cell divides.

113.
Non-cancerous tumors are called _____. Cancerous tumors are called _____.
a)
metastatic ; malignant
b)
malignant ; benign
c)
benign ; malignant
d)
benign ; metastatic
114.
Which phrase best describes cancer?
a)
absence of cyclins
b)
multiple gene mutations
c)
uncontrolled cell growth
d)
precesnce of genetic defects
115.

Which is NOT a normal reason for apoptosis?

a)

Destroy old or worn out cells

b)

Destroy damaged or dangerous cells

c)

Encourage division of cancer cells

d)

Break down unwanted tissue in embryos

116.

What is the purpose the the cell cycle checkpoints?

a)

To repair damaged cells before they enter cell division.

b)

To remove damaged cells from an organism.

117.

How many cell cycle checkpoints are there?

a)

1

b)

2

c)

3

d)

4

118.

What is the first checkpoint of the cell cycle?

a)

Mitosis checkpoint

b)

G1 checkpoint

c)

G2 checkpoint

119.

When is apoptosis initiated?

a)

When DNA damage is repaired.

b)

When cells are removed from the cell cycle.

c)

When DNA damage cannot be repaired.

120.
This is the cell cycle checkpoint that makes sure DNA has been replicated correctly during S phase.
a)
G1 Checkpoint
b)
G2 Checkpoint
c)
M Checkpoint
d)
I Checkpoint
121.

Name the 3 checkpoints of the cell cycle

a)

Anaphase checkpoint, mitosis/metaphase checkpoint, and telophase checkpoint

b)

Interphase checkpoint, S phase checkpoint, and M phase checkpoint

c)

G1 checkpoint, G2 checkpoint, and S phase checkpoint

d)

G1 checkpoint, G2 checkpoint, and mitosis/metaphase checkpoint

122.
a)

INCREASES GENETIC VARIATION

b)

TAKES PLACE IN PROPHASE I

c)

CROSSING OVER

d)

ALL ARE TRUE

123.

CROSSING OVER TAKES PLACE DURING

a)

PROPHASE II

b)

PROPHASE I

c)

INTERPHASE

d)

METAPHASE I

124.

WHAT TYPE OF CELLS STORE THE GENETIC INFORMATION THAT IS PASSED TO OFF-SPRING

a)

BODY CELLS

b)

MITOSIS

c)

EGG

d)

SPERM

e)

EGG AND SPERM

125.

MEIOSIS

a)

REDUCES THE NUMBER OF CHROMOSOMES BY ONE HALF

b)

PRODUCES UNIQUE SEX CELLS-1N

c)

ALLOWS TRAITS TO BE PASSED TO OFFSPRING

d)

ALL ARE TRUE

e)

INCREASE GENETIC VARIATION

126.

MITOSIS

a)

INCREASES GENETIC VARIATION

b)

ALLOWS TRAITS TO BE PASSED ON TO OFFSPRING

c)

PRODUCES 2 IDENTICAL DAUGHTER CELLS

d)

ALL ARE TRUE

127.

FERTILIZATION OCCURS WHEN

a)

THE SPERM UNITES WITH THE EGG

b)

THE SPERM UNDERGO MEIOSIS

c)

THE EGG UNDERGOES MEIOSIS

d)

THE EGG AND SPERM UNDERGOES MEIOSIS

128.

MEIOSIS PRODUCES 4 CELLS-THE CHROMOSOME NUMBER IS ...

a)

DIPLOID

b)

HAPLOID

129.

MEIOSIS PRODUCES 4 CELLS, THEY ARE

a)

N

b)

2N

c)

3N

130.

NORMAL HUMANS HAVE 46 CHROMOSOMES, HOW MANY WILL THE GERM CELLS HAVE AFTER MEIOSIS?

a)

46

b)

23

c)

12

d)

92

131.

WHICH OF THE FOLLOWING DO NOT OCCUR DURING THE MITOSIS STAGE OF THE CELL CYCLE

a)

SISTER CHROMATIDS SEPARATE LIKE IN ANAPHASE

b)

DNA IS REPLICATED LIKE IN THE S PHASE

c)

CHROMOSOMES LINE UP AT THE EQUATOR LIKE METAPHASE

d)

CHROMATIN CONDENSES INTO CHROMOSOMES

132.

CANCER CELLS ARE DIFFERENT BECAUSE THE DON'T ENTER THE G-0 PHASE AND THEY ARE LIKELY TO DO WHICH OF THE FOLLOWING

a)

FAIL TO COMPLETE S PHASE

b)

MUTATE DURING G1 PHASE

c)

REPEAT THE CELL CYCLE CONTINUOUSLY

d)

DIE AFTER COMPLETING MITOSIS

133.

Which of the following describes mitosis?

a)

Cell division--creates new somatic cells

b)

Cell division--creates gametes

134.

Which of the following describes meiosis?

a)

Cell division--creates new somatic cells

b)

Cell division--creates gametes

135.

During which process does the cell divide only once?

a)

Mitosis

b)

Meiosis

136.

During which process does the cell divide two times?

a)

Mitosis

b)

Meiosis

137.

Which process produces 4 cells?

a)

Mitosis

b)

Meiosis

138.

Which process produces cells that are identical?

a)

Mitosis

b)

Meiosis

139.

Which process produces cells that are unique / different from each other?

a)

Mitosis

b)

Meiosis

140.

Which process produces haploid cells?

a)

Mitosis

b)

Meiosis

141.

A cell has 10 chromosomes. It undergoes mitosis. How many chromosomes will each of the new cells have?

a)

5

b)

10

c)

15

d)

20

142.

A cell has 10 chromosomes. It undergoes meiosis. How many chromosomes will each of the new cells have?

a)

5

b)

10

c)

15

d)

20

143.
The stages of mitosis in order
a)
Metaphase, Anaphase, Prophase, Telophase
b)
Prophase, Anaphase, Metaphase, Telophase
c)
Prophase, Metaphase, Anaphase, Telophase
d)
Anaphase, Prophase, Telophase, Metaphase
144.
In prophase of Mitosis, DNA will condense into...
a)
Centromeres
b)
Chromosomes
c)
Nuclei
d)
Spindle fibers
145.
In which type of cells will mitosis occur?
a)
egg cells
b)
sperm cells
c)
jail cells
d)
Body cells except the sperm and egg cells
146.
How many cells are created at the end of Mitosis?
a)
1 diploid cell
b)
2 diploid cells
c)
3 diploid cells
d)
4 diploid cells
147.
What is the name of the process in which DNA (genetic information) is exchanged during meiosis?
a)
crossing under
b)
crossing over
c)
melding
d)
blending
148.
The process on the left is:
The process on the right is:
a)
Left: meiosis
Right: meiosis
b)
Left: meiosis
Right: cloning
c)
Left: mitosis
Right: meiosis
d)
Left: mitosis
Right: mitosis
149.
Humans have ________ pairs of chromosomes.
a)
21
b)
23
c)
46
d)
None of the above
150.
The 2 daughter cells at the end of Mitosis have how many chromosomes compared to the original?
a)
Half 
b)
Same 
c)
One-Third 
d)
None 
151.
Unlike mitosis, meiosis in male mammals results in the formation of
a)
one haploid gamete
b)
three diploid gametes
c)
four diploid gametes
d)
four haploid gametes
152.
Okazaki fragments form on the:
a)
lagging strand
b)
leading strand
c)
base-pairs
d)
5' end
153.
What strand is copied faster?
a)
Leading
b)
Lagging
154.

The separation of the two single strands of DNA creates a ‘Y’ shape?

a)

enzyme

b)

unzip

c)

A replication fork

155.

Structure C is

a)

helicase

b)

primase

c)

DNA polymerase III

d)

gyrase

156.

H is the

a)

leading strand

b)

lagging strand

c)

parent strand

d)

none of these

157.

This structure is an Okazaki fragment.

a)

A

b)

D

c)

F

d)

G

158.

The picture below shows the steps of DNA replication beginning with step one and ending with step three.


​Because you are reusing the old, or parent, DNA strand DNA replication is said to be

a)

Semi- Conservative

b)

Semi-discontinuous

c)

Continuous

d)

Fully-Conserveative

159.

The picture below shows an enzyme unwinding and unzipping DNA.

​

​What is the name of this enzyme?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

160.

Which is the first step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

161.

Which is the second step?

a)

DNA Helicase unwinds original DNA strand

b)

RNA Primase lays down RNA primer for new nucleotide bases.

c)

DNA polymerase builds new strands by bring in new nucleotide bases.

d)

Ligase knits together fragments on lagging strand

162.

Which letter in the picture below depicts the leading strand in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

163.

Which letter in the picture below depicts the lagging strand in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

164.

Which letter in the picture below depicts the replication fork in DNA replication?

a)

A

b)

C

c)

B

d)

None of the above

165.

If a person suffered from a disorder where their DNA fragments were unable to fill in the missing slots in between the fragments of the lagging strand, they would most likely have a disorder that affected which enzyme?

a)

DNA Helicase

b)

DNA Ligase

c)

DNA polyermase

d)

RNA Polymerase

166.

DNA replication runs from ______' to _____' and is said to be ______________________

a)

5, 3, antiparallel

b)

3, 5, antiparallel

c)

5, 3, parallel

d)

3, 5, parallel

167.

Okazaki fragments appear on which strand of DNA during DNA replication?

a)

lagging

b)

leading

168.

The directionality of DNA is said to be ___________, because it is side by side by goes in opposite directions.

a)

Anti-directional

b)

Parallel

c)

Anti-parallel

d)

Anti-uniform

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