A) has a circular genome. B) repairs mutations in the host genome. C) replicates by transposition. D) has a circular genome, repairs host genome mutations, and can replicate by transposition. A) has a circular genome. B) repairs mutations in the host genome. C) replicates by transposition. D) has a circular genome, repairs host genome mutations, and can replicate by transposition.

Exam 10: Viral Genomics, Diversity, and Ecology

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Describe the hypothesis of viruses occurring before living cells and how DNA might have evolved. What is the current hypothesis about the evolutionary relationships between RNA, DNA, viruses, and cellular life?

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Question 21

A drug designed to inhibit reverse transcriptase activity would target

(Multiple Choice)

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Question 22

A bacteriophage that lacks its proteinaceous capsid structure is also called a viroid.

(True/False)

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Question 23

Unusually shaped viruses, such as lemon-shaped and spindle-shaped, have recently been discovered in

(Multiple Choice)

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Question 24

The family of reoviruses contain dsRNA genomes use a ________ replication process.

(Multiple Choice)

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Question 25

The ________ has been especially useful for genetic engineering because it is capable of triggering a substantial immune response without causing major adverse health effects.

(Multiple Choice)

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Question 26

Among the largest RNA genome viruses are which contain a genome.

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Question 27

Genomics analysis of recently isolated viruses indicate that some viruses contain larger genomes than some bacterial genomes.

(True/False)

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Question 28

Bacteriophages that have single-stranded genomes are specialized to minimize energy requirements because just one strand is necessary for replication.

(True/False)

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Question 29

Due to their indispensible role for copying its genome, an intracellular host protease that attacks the adenoviral protein ends would likely result in halting its replication.

(True/False)

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Question 30

The hepadnavirus DNA polymerase acts as which of the following?

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Question 31

Despite viruses require a living hostʹs metabolism to replicate, it remains unclear whether viruses existed before living cells.

(True/False)

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Question 32

One hypothesis on the origin of DNA points to RNA viruses evolving a modified nucleotide that is insensitive to ribonucleases.

(True/False)

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Question 33

Many viruses that infect humans may illicit a strong immune response causing additional harmful effects, so the discovery of a virus that can induce an immune response without causing harm made it attractive for vaccine development.

(True/False)

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Question 34

Why are phylogenetic studies of viruses more challenging than Bacteria? Explain how genes are selected in viruses for phylogeny and the constraints those create.

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Question 35

Nonfilamentous bacteriophages often can escape its host without lysing, whereas filamentous phages normally induce cell lysis once replicated inside their host.

(True/False)

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Question 36

The phage Mu

(Multiple Choice)

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Question 37

What will happen if the Mu repressor is NOT synthesized?

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Question 38

Describe how bacteriophages influence the oceans' bacterial populations and nutrient cycling.

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Question 39

Due to the genetic diversity of viruses and their lack of ribosomal RNA, nucleotide-based phylogeny studies are not applicable to virology.

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Question 40

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Exam 10: Viral Genomics, Diversity, and Ecology

Describe the hypothesis of viruses occurring before living cells and how DNA might have evolved. What is the current hypothesis about the evolutionary relationships between RNA, DNA, viruses, and cellular life?

A drug designed to inhibit reverse transcriptase activity would target

A bacteriophage that lacks its proteinaceous capsid structure is also called a viroid.

Unusually shaped viruses, such as lemon-shaped and spindle-shaped, have recently been discovered in

The family of reoviruses contain dsRNA genomes use a ________ replication process.

The ________ has been especially useful for genetic engineering because it is capable of triggering a substantial immune response without causing major adverse health effects.

Among the largest RNA genome viruses are ________ which contain a ________ genome.

Genomics analysis of recently isolated viruses indicate that some viruses contain larger genomes than some bacterial genomes.

Bacteriophages that have single-stranded genomes are specialized to minimize energy requirements because just one strand is necessary for replication.

Due to their indispensible role for copying its genome, an intracellular host protease that attacks the adenoviral protein ends would likely result in halting its replication.

The hepadnavirus DNA polymerase acts as which of the following?

Despite viruses require a living hostʹs metabolism to replicate, it remains unclear whether viruses existed before living cells.

One hypothesis on the origin of DNA points to RNA viruses evolving a modified nucleotide that is insensitive to ribonucleases.

Many viruses that infect humans may illicit a strong immune response causing additional harmful effects, so the discovery of a virus that can induce an immune response without causing harm made it attractive for vaccine development.

Why are phylogenetic studies of viruses more challenging than Bacteria? Explain how genes are selected in viruses for phylogeny and the constraints those create.

Nonfilamentous bacteriophages often can escape its host without lysing, whereas filamentous phages normally induce cell lysis once replicated inside their host.

The phage Mu

What will happen if the Mu repressor is NOT synthesized?

Describe how bacteriophages influence the oceans' bacterial populations and nutrient cycling.

Due to the genetic diversity of viruses and their lack of ribosomal RNA, nucleotide-based phylogeny studies are not applicable to virology.

The Microbial World

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Information Flow and Protein Processing

Microbial Growth and Its Control

Microbial Regulatory Systems

Molecular Biology of Microbial Growth

Viruses and Their Replication

Microbial Systems Biology

Genetics of Bacteria and Archaea

Biotechnology and Synthetic Biology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Microorganisms

Diversity of Bacteria

Diversity of Archaea

Diversity of Microbial Eukarya

Taking the Measure of Microbial Systems

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Symbioses with Humans

Microbial Infection and Pathogenesis

Innate Immunity: Broadly Specific Host Defenses

Adaptive Immunity: Highly Specific Host Defenses

Clinical Microbiology and Immunology

Epidemiology

Person-to-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Waterborne and Foodborne Bacterial and Viral Diseases

Eukaryotic Pathogens: Fungi, Protozoans, and Helminths

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Among the largest RNA genome viruses are which contain a genome.