A) proofreads the newly synthesized DNA B) relieves over-twisting ahead of the DNA replication fork C) rewinds the newly synthesized DNA strands into a double-stranded helix D) unwinds the double-stranded DNA helix E) binds DNA polymerase to the template strand A) proofreads the newly synthesized DNA B) relieves over-twisting ahead of the DNA replication fork C) rewinds the newly synthesized DNA strands into a double-stranded helix D) unwinds the double-stranded DNA helix E) binds DNA polymerase to the template strand

A) maintain telomerase function B) have longer telomeres than normal cells C) eventually die due to shortening chromosomes D) have circular chromosomes E) cannot replicate their DNA A) maintain telomerase function B) have longer telomeres than normal cells C) eventually die due to shortening chromosomes D) have circular chromosomes E) cannot replicate their DNA

A) synthesizes a short RNA segment to begin DNA replication B) adds nucleotides to the 5' end of an existing strand to synthesize a new DNA strand C) adds nucleotides to the 3' end of an existing strand to synthesize a new DNA strand D) seals nicks between adjacent segments of DNA E) unwinds the DNA double helix at the origin of replication A) synthesizes a short RNA segment to begin DNA replication B) adds nucleotides to the 5' end of an existing strand to synthesize a new DNA strand C) adds nucleotides to the 3' end of an existing strand to synthesize a new DNA strand D) seals nicks between adjacent segments of DNA E) unwinds the DNA double helix at the origin of replication

Exam 14: Dna Structure, Replication, and Organization

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Although Watson and Crick are credited with the discovery of the structure of DNA, they based this discovery on the bench work of many other scientists of the time. Name at least three different pieces of knowledge that Watson and Crick used in their discovery that was based on work from other scientists.

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Question 61

During DNA replication, the strand is assembled in the direction as helix unwinding and is synthesized by replication.

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Question 62

Helicase ____.

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Question 63

Cancer cells ____.

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Question 64

In Hershey and Chase's experiment, why would it not have been suitable to use radioactive nitrogen to label DNA?

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Question 65

Avery, MacLeod, and McCarty continued Griffith's work with S. pneumoniae and concluded that DNA was the hereditary material. If protein were the hereditary material instead of DNA, what would happen to mice after injection of heat-killed virulent bacteria mixed with live non-virulent bacteria after treatment with protease?

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Question 66

DNA polymerase ____.

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Question 67

The polynucleotide chain of DNA has polarity: the 5' end has a bound , while the 3' end has a bound .

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Question 68

Labeling
Examine the accompanying figure. Match each letter of the figure with the appropriate DNA replication protein or enzyme.
Labeling Examine the accompanying figure. Match each letter of the figure with the appropriate DNA replication protein or enzyme. Figure 14.2

Figure 14.2

primase

DNA polymerase III

topoisomerase

Correct Answer:

Verified

primase

DNA polymerase III

topoisomerase

helicase

single-stranded binding protein

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Question 69

The active site of DNA polymerase is similar in ____.

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Question 70

In their experiments to identify the transforming principle, Avery, MacLeod, and McCarty used enzymes that break down ____.

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Question 71

What is the function of the sliding clamp in DNA replication?

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Question 72

The genome of an organism contains 14% guanine; therefore, its genome also contains % thymine and % cytosine.

(Multiple Choice)

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Question 73

A short RNA chain is synthesized as the first nucleotides in a new DNA strand by the enzyme to provide a for DNA elongation.

(Multiple Choice)

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Question 74

Why is DNA ligase most active on the lagging strand during DNA replication?

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Question 75

During normal DNA replication, part of the sequence at the ends of linear chromosomes is not copied into the new DNA strands because ____.

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Question 76

In eukaryotes, the DNA molecule that comprises a chromosome is and has replication origin.

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Question 77

Suppose you take a cell from an adult cow and attempt to use it to produce a clone of that cow. If telomerase is not functioning in that cell or in any of the cell's progeny, what would you expect to happen to your clone?

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Question 78

What are two main reasons why DNA mutations are so rare?

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Question 79

Showing 61 - 79 of 79

Exam 14: Dna Structure, Replication, and Organization

During DNA replication, the ____ strand is assembled in the ____ direction as helix unwinding and is synthesized by ____ replication.

Helicase ____.

Cancer cells ____.

In Hershey and Chase's experiment, why would it not have been suitable to use radioactive nitrogen to label DNA?

DNA polymerase ____.

The polynucleotide chain of DNA has polarity: the 5' end has a bound ____, while the 3' end has a bound ____.

The active site of DNA polymerase is similar in ____.

In their experiments to identify the transforming principle, Avery, MacLeod, and McCarty used enzymes that break down ____.

What is the function of the sliding clamp in DNA replication?

The genome of an organism contains 14% guanine; therefore, its genome also contains ____% thymine and ____% cytosine.

A short RNA chain is synthesized as the first nucleotides in a new DNA strand by the enzyme ____ to provide a ____ for DNA elongation.

Why is DNA ligase most active on the lagging strand during DNA replication?

During normal DNA replication, part of the sequence at the ends of linear chromosomes is not copied into the new DNA strands because ____.

In eukaryotes, the DNA molecule that comprises a chromosome is ____ and has ____ replication origin.

Suppose you take a cell from an adult cow and attempt to use it to produce a clone of that cow. If telomerase is not functioning in that cell or in any of the cell's progeny, what would you expect to happen to your clone?

What are two main reasons why DNA mutations are so rare?

Introduction to Biological Concepts and Research

Life, Chemistry, and Water

Biological Molecules: the Carbon Compounds of Life

Cells

Membranes and Transport

Energy, Enzymes, and Biological Reactions

Cellular Respiration: Harvesting Chemical Energy

Photosynthesis

Cell Communication

Cell Division and Mitosis

Meiosis: the Cellular Basis of Sexual Reproduction

Mendel, Genes, and Inheritance

Genes, Chromosomes, and Human Genetics

Gene Expression: From Dna to Protein

Regulation of Gene Expression

Bacterial and Viral Genetics

Dna Technology: Making and Using Genetically Altered Organisms, and Other Applications

Genomes and Proteomes

The Development of Evolutionary Thought

Microevolution: Genetic Changes Within Populations

Speciation

Paleobiology and Macroevolution

Systematic Biology: Phylogeny and Classification

The Origin of Life

Prokaryotes and Viruses

Protists

Seedless Plants

Seed Plants

Fungi

Animal Phylogeny, Acoelomates, and Protostomes

Deuterostomes: Vertebrates and Their Closest Relatives

The Plant Body

Transport in Plants

Plant Nutrition

Reproduction and Development in Flowering Plants

Plant Signals and Responses to the Environment

Introduction to Animal Organization and Physiology

Information Flow and the Neuron

Nervous Systems

Sensory Systems

The Endocrine System

Muscles, Bones, and Body Movements

The Circulatory System

Defenses Against Disease

Gas Exchange: the Respiratory System

Digestive Systems and Animal Nutrition

Regulating the Internal Environment: Osmoregulation, Excretion, and Thermoregulation

Animal Reproduction

Animal Development

Ecology and the Biosphere

Population Ecology

Population Interactions and Community Ecology

Ecosystems

Biodiversity and Conservation Biology

Animal Behavior

Filters

During DNA replication, the strand is assembled in the direction as helix unwinding and is synthesized by replication.

The polynucleotide chain of DNA has polarity: the 5' end has a bound , while the 3' end has a bound .

The genome of an organism contains 14% guanine; therefore, its genome also contains % thymine and % cytosine.

A short RNA chain is synthesized as the first nucleotides in a new DNA strand by the enzyme to provide a for DNA elongation.

In eukaryotes, the DNA molecule that comprises a chromosome is and has replication origin.