Question 1

Worldwide, HIV infects one in ________ adults.

Accepted Answer

A)  20 
B)  50 
C)  100 
D)  500 
E)  1,000 
A)  20 
B)  50 
C)  100 
D)  500 
E)  1,000

Question 2

The causative agent of chickenpox is

Accepted Answer

A)  herpes simplex virus 1. 
B)  herpes simplex virus 2. 
C)  varicella-zoster virus. 
D)  Epstein-Barr virus. 
E)  HIV. 
A)  herpes simplex virus 1. 
B)  herpes simplex virus 2. 
C)  varicella-zoster virus. 
D)  Epstein-Barr virus. 
E)  HIV.

Question 3

How does the herpes simplex virus genome reach the interior of an infected cell?

Accepted Answer

A)  The core particle partly uncoats after entering the cytoplasm. 
B)  The intact viral capsid travels down a scaffold of microtubules to a nuclear pore. 
C)  The viral particle enters the cell by endocytosis and releases virion contents into the cytoplasm. 
D)  The capsid remains outside the cell; the nucleic acid is threaded through a receptor in the membrane. 
E)  DNA is forced into the capsid. 
A)  The core particle partly uncoats after entering the cytoplasm. 
B)  The intact viral capsid travels down a scaffold of microtubules to a nuclear pore. 
C)  The viral particle enters the cell by endocytosis and releases virion contents into the cytoplasm. 
D)  The capsid remains outside the cell; the nucleic acid is threaded through a receptor in the membrane. 
E)  DNA is forced into the capsid.

Question 4

What vertebrate groups harbor influenza viruses capable of mutating into strains infective to humans?

Accepted Answer

A)  cattle and horses 
B)  swine and cattle 
C)  birds and swine 
D)  mice and rats 
E)  canines and felines 
A)  cattle and horses 
B)  swine and cattle 
C)  birds and swine 
D)  mice and rats 
E)  canines and felines

Question 5

After Dr. Esther Lederberg crossed a standard stock of Escherichia coli K-12 with UV-mutagenized cells of the same strain, she observed the formation of plaques, but only among the mutagenized colonies. What was the explanation for this phenomenon?

Accepted Answer

UV treatment led to the loss of the lamb

Question 6

Retroelements and transposons compose about what percentage of the sequence of the human genome.

Accepted Answer

A)  8 
B)  25 
C)  33 
D)  50 
E)  90 
A)  8 
B)  25 
C)  33 
D)  50 
E)  90

Question 7

The capsid of the bacteriophage lambda is composed of two types of protein subunits, namely, D and E, arranged in a(n)________ shape.

Accepted Answer

A)  icosahedral 
B)  rhomboidal 
C)  pyramidal 
D)  triclinic 
E)  cubic 
A)  icosahedral 
B)  rhomboidal 
C)  pyramidal 
D)  triclinic 
E)  cubic

Question 8

Which of the following viral groups has been successfully utilized as vector in gene therapy?

Accepted Answer

A)  rhabdoviruses 
B)  parvoviruses 
C)  lentiviruses 
D)  orthomyxoviruses 
E)  bacteriophages 
A)  rhabdoviruses 
B)  parvoviruses 
C)  lentiviruses 
D)  orthomyxoviruses 
E)  bacteriophages

Question 9

Describe the replication process of the human immunodeficiency virus (HIV).

Accepted Answer

The HIV virion attaches to host cell CD4

Question 10

Why is it advantageous to use lentivectors to treat diseases that affect nondividing cells?

Accepted Answer

Accessory protein Vpr allows lentiviruse

Worldwide, HIV infects one in ________ adults.

The causative agent of chickenpox is

How does the herpes simplex virus genome reach the interior of an infected cell?

What vertebrate groups harbor influenza viruses capable of mutating into strains infective to humans?

After Dr. Esther Lederberg crossed a standard stock of Escherichia coli K-12 with UV-mutagenized cells of the same strain, she observed the formation of plaques, but only among the mutagenized colonies. What was the explanation for this phenomenon?

Retroelements and transposons compose about what percentage of the sequence of the human genome.

The capsid of the bacteriophage lambda is composed of two types of protein subunits, namely, D and E, arranged in a(n)________ shape.

Which of the following viral groups has been successfully utilized as vector in gene therapy?

Describe the replication process of the human immunodeficiency virus (HIV).

Why is it advantageous to use lentivectors to treat diseases that affect nondividing cells?

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters

Exam 11: Viral Molecular Biology

Worldwide, HIV infects one in ________ adults.

The causative agent of chickenpox is

How does the herpes simplex virus genome reach the interior of an infected cell?

What vertebrate groups harbor influenza viruses capable of mutating into strains infective to humans?

After Dr. Esther Lederberg crossed a standard stock of Escherichia coli K-12 with UV-mutagenized cells of the same strain, she observed the formation of plaques, but only among the mutagenized colonies. What was the explanation for this phenomenon?

Retroelements and transposons compose about what percentage of the sequence of the human genome.

The capsid of the bacteriophage lambda is composed of two types of protein subunits, namely, D and E, arranged in a(n)________ shape.

Which of the following viral groups has been successfully utilized as vector in gene therapy?

Describe the replication process of the human immunodeficiency virus (HIV).

Why is it advantageous to use lentivectors to treat diseases that affect nondividing cells?

Microbial Life: Origin and Discovery

Observing the Microbial Cell

Cell Structure and Function

Bacterial Culture, Growth, and Development

Environmental Influences and Control of Microbial Growth

Viruses

Genomes and Chromosomes

Transcription, Translation, and Bioinformatics

Gene Transfer, Mutations, and Genome Evolution

Molecular Regulation

Biotechniques and Synthetic Biology

Energetics and Catabolism

Electron Flow in Organotrophy, Lithotrophy, and Phototrophy

Biosynthesis

Food and Industrial Microbiology

Origins and Evolution

Bacterial Diversity

Archaeal Diversity

Eukaryotic Diversity

Microbial Ecology

Microbes in Global Elemental Cycles

Human Microbiota and Innate Immunity

The Adaptive Immune Response

Microbial Pathogenesis

Microbial Diseases

Antimicrobial Therapy

Clinical Microbiology and Epidemiology

Filters