Question 1

DNA Pol III catalyzes the addition of successive nucleotides to the 5' end of a growing polynucleotide chain.
__________________

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 segments labeled F are responsible for:

Accepted Answer

A)  linking short DNA segments. 
B)  synthesizing the leading strand. 
C)  forming the replication fork. 
D)  initiating DNA synthesis. 
E)  unwinding the DNA double helix. 
A)  linking short DNA segments. 
B)  synthesizing the leading strand. 
C)  forming the replication fork. 
D)  initiating DNA synthesis. 
E)  unwinding the DNA double helix.

Question 3

The 5'end of each Okazaki fragment begins with:

Accepted Answer

A)  the same RNA primer that began synthesis on the leading strand. 
B)  a DNA primer binding to the template DNA. 
C)  DNA polymerase binding to the template DNA. 
D)  a separate RNA primer. 
E)  a small DNA primer. 
A)  the same RNA primer that began synthesis on the leading strand. 
B)  a DNA primer binding to the template DNA. 
C)  DNA polymerase binding to the template DNA. 
D)  a separate RNA primer. 
E)  a small DNA primer.

Question 4

A eukaryotic chromosome would most likely have only one origin of replication.
__________________

Accepted Answer

A) True 
 B)False

Question 5

If DNA replication rejoined the 2 parental strands, it would be termed:

Accepted Answer

A)  dispersive. 
B)  gradient. 
C)  semiconservative. 
D)  parental. 
E)  conservative. 
A)  dispersive. 
B)  gradient. 
C)  semiconservative. 
D)  parental. 
E)  conservative.

Question 6

When a DNA molecule containing a wrong base at one location in one strand is replicated:

Accepted Answer

A)  the mutation is corrected by the DNA polymerase enzyme. 
B)  the mutation is ignored by the DNA polymerase enzyme. 
C)  the mutation is copied into one of the two daughter molecules. 
D)  the mutation is copied into both of the daughter molecules. 
E)  the replication is stopped. 
A)  the mutation is corrected by the DNA polymerase enzyme. 
B)  the mutation is ignored by the DNA polymerase enzyme. 
C)  the mutation is copied into one of the two daughter molecules. 
D)  the mutation is copied into both of the daughter molecules. 
E)  the replication is stopped.

Question 7

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
-a helix-destabilizing enzyme

Accepted Answer

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

Question 8

Meselson and Stahl separated DNA from different generations using:

Accepted Answer

A)  density gradient centrifugation. 
B)  gel electrophoresis. 
C)  an electron microscope. 
D)  differential radioisotope labeling. 
E)  None of these. 
A)  density gradient centrifugation. 
B)  gel electrophoresis. 
C)  an electron microscope. 
D)  differential radioisotope labeling. 
E)  None of these.

Question 9

What prevents knot formation in replicating DNA?

Accepted Answer

A)  protosomes 
B)  topoisomerases 
C)  scaffolding proteins 
D)  chromatin 
E)  histones 
A)  protosomes 
B)  topoisomerases 
C)  scaffolding proteins 
D)  chromatin 
E)  histones

Question 10

Why is DNA able to store large amounts of information?

Accepted Answer

A)  It contains a large number of different nucleotides. 
B)  Its nucleotides can be arranged in a large number of possible sequences. 
C)  It is capable of assuming a wide variety of shapes. 
D)  The sugar and phosphates can be arranged in many different sequences. 
E)  The nucleotides can be altered to form many different letters in the sequence. 
A)  It contains a large number of different nucleotides. 
B)  Its nucleotides can be arranged in a large number of possible sequences. 
C)  It is capable of assuming a wide variety of shapes. 
D)  The sugar and phosphates can be arranged in many different sequences. 
E)  The nucleotides can be altered to form many different letters in the sequence.

Question 11

How is a single strand of DNA able to serve as a template for the synthesis of another strand?

Accepted Answer

A)  Nucleotides pair with those of the original strand to form a new strand. 
B)  Hydrogen bonds holding the two strands together are easy to break, allowing one strand to be a template. 
C)  A single strand of DNA is not able to serve as a template. 
D)  One strand of DNA directs the synthesis of a new strand on its partner. 
E)  Both the pairing of nucleotides and the breaking of hydrogen bonds. 
A)  Nucleotides pair with those of the original strand to form a new strand. 
B)  Hydrogen bonds holding the two strands together are easy to break, allowing one strand to be a template. 
C)  A single strand of DNA is not able to serve as a template. 
D)  One strand of DNA directs the synthesis of a new strand on its partner. 
E)  Both the pairing of nucleotides and the breaking of hydrogen bonds.

Question 12

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 the linking of successive nucleotides to a DNA strand already paired with a template strand

Accepted Answer

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

Question 13

An RNA primer is synthesized by RNA primase.
__________________

Accepted Answer

A) True 
 B)False

Question 14

__________ determined the structure of the molecule DNA.

Accepted Answer

A)  Crick and Wilkins 
B)  Watson and Crick 
C)  Franklin and Crick 
D)  Franklin 
E)  Watson, Crick, and Wilkins 
A)  Crick and Wilkins 
B)  Watson and Crick 
C)  Franklin and Crick 
D)  Franklin 
E)  Watson, Crick, and Wilkins

Question 15

Single-strand binding proteins prevent the hydrolysis of single-strand regions of DNA by nucleases.
__________________

Accepted Answer

A) True 
 B)False

Question 16

Which of the following causes the unwinding of the DNA double helix?

Accepted Answer

A)  DNA polymerase 
B)  DNA helicase 
C)  RNA primer 
D)  primosome 
E)  RNA polymerase 
A)  DNA polymerase 
B)  DNA helicase 
C)  RNA primer 
D)  primosome 
E)  RNA polymerase

Question 17

Figure 12-1
Use the figure to answer the corresponding question(s).  
-In Figure 12-1, the portion of the molecule in box __________ is a pyrimidine.

Accepted Answer

A)  1 
B)  3 
C)  4 
D)  1 and 3 
E)  3 and 4 
A)  1 
B)  3 
C)  4 
D)  1 and 3 
E)  3 and 4

Question 18

How are the chromosomes of a eukaryote cell replicated?

Accepted Answer

A)  The linear DNA molecules are replicated from multiple origins of replication bidirectionally. 
B)  The linear DNA molecules are replicated from one origin of replication bidirectionally. 
C)  The circular DNA molecules are replicated from multiple origins of replication bidirectionally. 
D)  The circular DNA molecules are replicated from one origin of replication bidirectionally. 
E)  The linear DNA molecules are replicated from one origin of replication unidirectionally. 
A)  The linear DNA molecules are replicated from multiple origins of replication bidirectionally. 
B)  The linear DNA molecules are replicated from one origin of replication bidirectionally. 
C)  The circular DNA molecules are replicated from multiple origins of replication bidirectionally. 
D)  The circular DNA molecules are replicated from one origin of replication bidirectionally. 
E)  The linear DNA molecules are replicated from one origin of replication unidirectionally.

Question 19

In DNA replication, the lagging strand:

Accepted Answer

A)  is synthesized as a series of Okazaki fragments. 
B)  is synthesized as a complementary copy of the leading strand. 
C)  pairs with the leading strand by complementary base pairing. 
D)  is made up entirely of RNA primers. 
E)  is not synthesized until the synthesis of the leading strand is completed. 
A)  is synthesized as a series of Okazaki fragments. 
B)  is synthesized as a complementary copy of the leading strand. 
C)  pairs with the leading strand by complementary base pairing. 
D)  is made up entirely of RNA primers. 
E)  is not synthesized until the synthesis of the leading strand is completed.

Question 20

The final product of DNA replication is:

Accepted Answer

A)  mRNA, tRNA, and rRNA molecules. 
B)  a wide variety of proteins. 
C)  DNA fragments. 
D)  two DNA molecules, each of which contains one new and one old DNA strand. 
E)  the enzymes needed for further processes, such as DNA polymerase. 
A)  mRNA, tRNA, and rRNA molecules. 
B)  a wide variety of proteins. 
C)  DNA fragments. 
D)  two DNA molecules, each of which contains one new and one old DNA strand. 
E)  the enzymes needed for further processes, such as DNA polymerase.

Exam 12: Dna: the Carrier of Genetic Information

DNA Pol III catalyzes the addition of successive nucleotides to the 5' end of a growing polynucleotide chain. __________________

Figure 12-2 Use the figure to answer the corresponding question(s). -Refer to Figure 12-2.The segments labeled F are responsible for:

The 5'end of each Okazaki fragment begins with:

A eukaryotic chromosome would most likely have only one origin of replication. __________________

If DNA replication rejoined the 2 parental strands, it would be termed:

When a DNA molecule containing a wrong base at one location in one strand is replicated:

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 -a helix-destabilizing enzyme

Meselson and Stahl separated DNA from different generations using:

What prevents knot formation in replicating DNA?

Why is DNA able to store large amounts of information?

How is a single strand of DNA able to serve as a template for the synthesis of another strand?

An RNA primer is synthesized by RNA primase. __________________

__________ determined the structure of the molecule DNA.

Single-strand binding proteins prevent the hydrolysis of single-strand regions of DNA by nucleases. __________________

Which of the following causes the unwinding of the DNA double helix?

Figure 12-1 Use the figure to answer the corresponding question(s). -In Figure 12-1, the portion of the molecule in box __________ is a pyrimidine.

How are the chromosomes of a eukaryote cell replicated?

In DNA replication, the lagging strand:

The final product of DNA replication is:

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

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