Question 1

DNA replication is described as being conservative.
__________________

Accepted Answer

A) True 
 B)False

Question 2

Figure 12-2
Use the figure to answer the corresponding question(s).  
-Refer to Figure 12-2.The correct designation for the DNA strand labeled C is:

Accepted Answer

A)  the leading strand. 
B)  3'. 
C)  Okazaki fragments. 
D)  polymerase. 
E)  a strand serving as a template. 
A)  the leading strand. 
B)  3'. 
C)  Okazaki fragments. 
D)  polymerase. 
E)  a strand serving as a template.

Question 3

MATCHING
In the following questions, match the component of DNA replication with its function.
a.topoisomerase
d.DNA helicase
b.DNA ligase
e.DNA primase
c.DNA polymerase
f.Single-strand binding protein
-prevents the hydrolysis of single DNA strands by nucleases

Accepted Answer

The answer of MATCHING
In the following questions, match the component...

Question 4

MATCHING
In the following questions, match the component of DNA replication with its function.
a.topoisomerase
d.DNA helicase
b.DNA ligase
e.DNA primase
c.DNA polymerase
f.Single-strand binding protein
-catalyzes a reaction that occurs in the lagging strand but not in the leading strand

Accepted Answer

The answer of MATCHING
In the following questions, match the component...

Question 5

Chargaff determined that DNA from any source contains about the same amount of guanine as __________.

Accepted Answer

A)  uracil 
B)  thymine 
C)  adenine 
D)  cytosine 
E)  guanine 
A)  uracil 
B)  thymine 
C)  adenine 
D)  cytosine 
E)  guanine

Question 6

Okazaki fragments are found in the leading strand of DNA.
__________________

Accepted Answer

A) True 
 B)False

Question 7

Who first confirmed that the replication of DNA was semiconservative?

Accepted Answer

A)  Chargaff and Hershey 
B)  Watson and Crick 
C)  Avery and Griffith 
D)  Meselson and Stahl 
E)  Watson, Crick, and Wilkins 
A)  Chargaff and Hershey 
B)  Watson and Crick 
C)  Avery and Griffith 
D)  Meselson and Stahl 
E)  Watson, Crick, and Wilkins

Question 8

The bacteriophages used in Alfred Hershey's and Martha Chase's experiments showed that:

Accepted Answer

A)  DNA was injected into bacteria. 
B)  DNA and protein were injected into bacteria. 
C)  DNA remained on the outer coat of bacteria. 
D)  proteins were injected into bacteria. 
E)  proteins were responsible for the production of new viruses within the bacteria. 
A)  DNA was injected into bacteria. 
B)  DNA and protein were injected into bacteria. 
C)  DNA remained on the outer coat of bacteria. 
D)  proteins were injected into bacteria. 
E)  proteins were responsible for the production of new viruses within the bacteria.

Question 9

MATCHING
In the following questions, match the component of DNA replication with its function.
a.topoisomerase
d.DNA helicase
b.DNA ligase
e.DNA primase
c.DNA polymerase
f.Single-strand binding protein
-produces breaks in the DNA molecules and then rejoins the strands

Accepted Answer

The answer of MATCHING
In the following questions, match the component...

Question 10

A replication fork:

Accepted Answer

A)  is only seen in prokaryotic chromosomes. 
B)  is only seen in bacterial cells. 
C)  is a Y-shaped structure where both DNA strands are replicated simultaneously. 
D)  is a site where one DNA strand serves as a template, but the other strand is not replicated. 
E)  is created by the action of the enzyme RNA polymerase. 
A)  is only seen in prokaryotic chromosomes. 
B)  is only seen in bacterial cells. 
C)  is a Y-shaped structure where both DNA strands are replicated simultaneously. 
D)  is a site where one DNA strand serves as a template, but the other strand is not replicated. 
E)  is created by the action of the enzyme RNA polymerase.

Question 11

The information carried by DNA is incorporated in a code specified by the:

Accepted Answer

A)  phosphodiester bonds of the DNA strand. 
B)  number of separate strands of DNA. 
C)  size of a particular chromosome. 
D)  specific nucleotide sequence of the DNA molecule. 
E)  number of bases in a DNA strand. 
A)  phosphodiester bonds of the DNA strand. 
B)  number of separate strands of DNA. 
C)  size of a particular chromosome. 
D)  specific nucleotide sequence of the DNA molecule. 
E)  number of bases in a DNA strand.

Question 12

X-ray diffraction studies are used to determine:

Accepted Answer

A)  the sequence of amino acids in protein molecules. 
B)  the sequence of nucleic acids in nucleic acid molecules. 
C)  the distances between atoms of molecules. 
D)  the type of chemical under investigation. 
E)  the wavelength of light emitted by chemicals. 
A)  the sequence of amino acids in protein molecules. 
B)  the sequence of nucleic acids in nucleic acid molecules. 
C)  the distances between atoms of molecules. 
D)  the type of chemical under investigation. 
E)  the wavelength of light emitted by chemicals.

Question 13

When cultured normal human cells were infected with a virus that carried the genes that coded for a subunit of telomerase:

Accepted Answer

A)  the cells underwent more cell divisions than normal. 
B)  the cells underwent fewer cell divisions than normal. 
C)  the cells died almost immediately. 
D)  the cells underwent gene expression more vigorously. 
E)  the cell cycle shortened. 
A)  the cells underwent more cell divisions than normal. 
B)  the cells underwent fewer cell divisions than normal. 
C)  the cells died almost immediately. 
D)  the cells underwent gene expression more vigorously. 
E)  the cell cycle shortened.

Question 14

MATCHING
In the following questions, match the component of DNA replication with its function.
a.topoisomerase
d.DNA helicase
b.DNA ligase
e.DNA primase
c.DNA polymerase
f.Single-strand binding protein
-bind DNA at the origin of replication and break hydrogen bonds

Accepted Answer

The answer of MATCHING
In the following questions, match the component...

Question 15

__________, the ends of eukaryotic chromosomes, shorten with every cell replication event.

Accepted Answer

A)  Centromeres 
B)  Telomeres 
C)  Kinetochores 
D)  Primosomes 
E)  Nucleosomes 
A)  Centromeres 
B)  Telomeres 
C)  Kinetochores 
D)  Primosomes 
E)  Nucleosomes

Question 16

Short, noncoding, guanine-rich DNA sequences found in the center of chromosomes are called telomeres.
__________________

Accepted Answer

A) True 
 B)False

Question 17

MATCHING
In the following questions, match the component of DNA replication with its function.
a.topoisomerase
d.DNA helicase
b.DNA ligase
e.DNA primase
c.DNA polymerase
f.Single-strand binding protein
-prevents supercoiling and knotting of DNA strands

Accepted Answer

The answer of MATCHING
In the following questions, match the component...

Question 18

Compare and contrast DNA synthesis in prokaryotes and eukaryotes.

Accepted Answer

The process of DNA replication in prokar

Question 19

X-ray crystallography showed that DNA:

Accepted Answer

A)  had the bases in the center of the molecule. 
B)  had the sugars and phosphates on the outside of the molecule. 
C)  was a very long molecule. 
D)  was made of 2 strands. 
E)  was a helix. 
A)  had the bases in the center of the molecule. 
B)  had the sugars and phosphates on the outside of the molecule. 
C)  was a very long molecule. 
D)  was made of 2 strands. 
E)  was a helix.

Question 20

Figure 12-1
Use the figure to answer the corresponding question(s).  
-Hydrogen bonds can form between guanine and __________, and between adenine and __________.

Accepted Answer

A)  phosphate; sugar 
B)  thymine; cytosine 
C)  cytosine; thymine 
D)  sugar; phosphate 
E)  adenine; guanine 
A)  phosphate; sugar 
B)  thymine; cytosine 
C)  cytosine; thymine 
D)  sugar; phosphate 
E)  adenine; guanine

Exam 12: Dna: the Carrier of Genetic Information

DNA replication is described as being conservative. __________________

Figure 12-2 Use the figure to answer the corresponding question(s). -Refer to Figure 12-2.The correct designation for the DNA strand labeled C is:

MATCHING In the following questions, match the component of DNA replication with its function. a.topoisomerase d.DNA helicase b.DNA ligase e.DNA primase c.DNA polymerase f.Single-strand binding protein -prevents the hydrolysis of single DNA strands by nucleases

MATCHING In the following questions, match the component of DNA replication with its function. a.topoisomerase d.DNA helicase b.DNA ligase e.DNA primase c.DNA polymerase f.Single-strand binding protein -catalyzes a reaction that occurs in the lagging strand but not in the leading strand

Chargaff determined that DNA from any source contains about the same amount of guanine as __________.

Okazaki fragments are found in the leading strand of DNA. __________________

Who first confirmed that the replication of DNA was semiconservative?

The bacteriophages used in Alfred Hershey's and Martha Chase's experiments showed that:

MATCHING In the following questions, match the component of DNA replication with its function. a.topoisomerase d.DNA helicase b.DNA ligase e.DNA primase c.DNA polymerase f.Single-strand binding protein -produces breaks in the DNA molecules and then rejoins the strands

A replication fork:

The information carried by DNA is incorporated in a code specified by the:

X-ray diffraction studies are used to determine:

When cultured normal human cells were infected with a virus that carried the genes that coded for a subunit of telomerase:

MATCHING In the following questions, match the component of DNA replication with its function. a.topoisomerase d.DNA helicase b.DNA ligase e.DNA primase c.DNA polymerase f.Single-strand binding protein -bind DNA at the origin of replication and break hydrogen bonds

__________, the ends of eukaryotic chromosomes, shorten with every cell replication event.

Short, noncoding, guanine-rich DNA sequences found in the center of chromosomes are called telomeres. __________________

MATCHING In the following questions, match the component of DNA replication with its function. a.topoisomerase d.DNA helicase b.DNA ligase e.DNA primase c.DNA polymerase f.Single-strand binding protein -prevents supercoiling and knotting of DNA strands

Compare and contrast DNA synthesis in prokaryotes and eukaryotes.

X-ray crystallography showed that DNA:

Figure 12-1 Use the figure to answer the corresponding question(s). -Hydrogen bonds can form between guanine and __________, and between adenine and __________.

A View of Life

Atoms and Molecules: the Chemical Basis of Life

The Chemistry of Life: Organic Compounds

Organization of the Cell

Biological Membranes

Cell Communication

Energy and Metabolism

How Cells Make Atp: Energy-Releasing Pathways

Photosynthesis: Capturing Light Energy

Chromosomes, Mitosis, and Meiosis

The Basic Principles of Heredity

Gene Expression

Gene Regulation

Dna Technology and Genomics

Human Genetics and the Human Genome

Developmental Genetics

Introduction to Darwinian Evolution

Evolutionary Change in Populations

Speciation and Macroevolution

The Origin and Evolutionary History of Life

The Evolution of Primates

Understanding Diversity: Systematics

Viruses and Subviral Agents

Bacteria and Archaea

Protists

Seedless Plants

Seed Plants

The Fungi

An Introduction to Animal Diversity

Sponges, Cnidarians, Ctenophores, and Protostomes

The Deuterostomes

Plant Structure, Growth, and Development

Leaf Structure and Function

Stem Structure and Transport

Roots and Mineral Nutrition

Reproduction in Flowering Plants

Plant Developmental Responses to External and Internal Signals

Animal Structure and Function: an Introduction

Protection, Support, and Movement

Neural Signaling

Neural Regulation

Sensory Systems

Internal Transport

The Immune System: Internal Defense

Gas Exchange

Processing Food and Nutrition

Osmoregulation and Disposal of Metabolic Wastes

Endocrine Regulation

Reproduction

Animal Development

Animal Behavior

Introduction to Ecology: Population Ecology

Community Ecology

Ecosystems and the Biosphere

Ecology and the Geography of Life

Biological Diversity and Conservation Biology

Filters

Figure 12-1 Use the figure to answer the corresponding question(s). -Hydrogen bonds can form between guanine and , and between adenine and .