Bradley W. Christian, McLennan Community College© 2016 Pearson Education, Inc.

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Chapter 13: Viruses, Viroids, and Prions

Viral Characteristics

Viral Cultivation

Viral Infections

Prions/Viroids

Viruses and Cancer

FINAL ROUND

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Topic 1: Viral Characteristics $100 Question

Which of the following is TRUE regarding viruses?

a. Virions contain both DNA and RNA.b. They multiply by binary fission.c. They are sensitive to antibiotics.d. They are not composed of cells.

ANSWER

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Topic 1: Viral Characteristics $100 Answer

Which of the following is TRUE regarding viruses?

a. Virions contain both DNA and RNA.b. They multiply by binary fission.c. They are sensitive to antibiotics.d. They are not composed of cells.

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Topic 1: Viral Characteristics $200 Question

Which of the following is NOT a morphological type of virus?

a. helicalb. polymorphicc. polyhedrald. enveloped

ANSWER

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Topic 1: Viral Characteristics $200 Answer

Which of the following is NOT a morphological type of virus?

a. helicalb. polymorphicc. polyhedrald. enveloped

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Topic 1: Viral Characteristics $300 Question

Viruses that infect bacteria are called

a. bacteriophages.b. prions.c. viroids.d. antisense viruses.

ANSWER

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Topic 1: Viral Characteristics $300 Answer

Viruses that infect bacteria are called

a. bacteriophages.b. prions.c. viroids.d. antisense viruses.

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Topic 1: Viral Characteristics $400 Question

The suffix –viridae is used for virus

a. genus names.b. order names.c. phylum names.d. family names.

ANSWER

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Topic 1: Viral Characteristics $400 Answer

The suffix –viridae is used for virus

a. genus names.b. order names.c. phylum names.d. family names.

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Topic 1: Viral Characteristics $500 Question

Capsids are composed of protein subunits known as

a. capsomeres.b. spikes.c. envelopes.d. tail fibers.

ANSWER

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Topic 1: Viral Characteristics $500 Answer

Capsids are composed of protein subunits known as

a. capsomeres.b. spikes.c. envelopes.d. tail fibers.

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Topic 2: Viral Cultivation $100 Question

What is/are the MOST common method(s) used to identify viruses?

a. serological methodsb. observation of cytopathic effectsc. polymerase chain reaction (PCR)d. morphology

ANSWER

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Topic 2: Viral Cultivation $100 Answer

What is/are the MOST common method(s) used to identify viruses?

a. serological methodsb. observation of cytopathic effectsc. polymerase chain reaction (PCR)d. morphology

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Topic 2: Viral Cultivation $200 Question

ALL of the following can be used to culture animal viruses EXCEPT

a. laboratory animals.b. cell culture.c. embryonated eggs.d. glucose broth.

ANSWER

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Topic 2: Viral Cultivation $200 Answer

ALL of the following can be used to culture animal viruses EXCEPT

a. laboratory animals.b. cell culture.c. embryonated eggs.d. glucose broth.

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Topic 2: Viral Cultivation $300 Question

Cell deteriorations due to viral infections are known as

a. transformations.b. biosynthesis.c. cytopathic effects.d. plaques.

ANSWER

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Topic 2: Viral Cultivation $300 Answer

Cell deteriorations due to viral infections are known as

a. transformations.b. biosynthesis.c. cytopathic effects.d. plaques.

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Topic 2: Viral Cultivation $400 Question

Continuous cell lines

a. die out after only a few generations.b. are sometimes called immortal cell lines.c. are grown in embryonated eggs.d. are derived from bacteria.

ANSWER

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Topic 2: Viral Cultivation $400 Answer

Continuous cell lines

a. die out after only a few generations.b. are sometimes called immortal cell lines.c. are grown in embryonated eggs.d. are derived from bacteria.

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Topic 2: Viral Cultivation $500 Question

The plaque method can be used to

a. grow bacteriophages.b. grow animal viruses.c. genetically modify viruses.d. identify viral species.

ANSWER

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Topic 2: Viral Cultivation $500 Answer

The plaque method can be used to

a. grow bacteriophages.b. grow animal viruses.c. genetically modify viruses.d. identify viral species.

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Topic 3: Viral Infections $100 Question

Which of the following is an example of a persistent viral infection in humans?

a. cold soreb. HIV/AIDSc. shinglesd. influenza

ANSWER

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Topic 3: Viral Infections $100 Answer

Which of the following is an example of a persistent viral infection in humans?

a. cold soreb. HIV/AIDSc. shinglesd. influenza

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Topic 3: Viral Infections $200 Question

Which of the following is an example of a latent viral infection in humans?

a. measlesb. HIV/AIDSc. shinglesd. influenza

ANSWER

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Topic 3: Viral Infections $200 Answer

Which of the following is an example of a latent viral infection in humans?

a. measlesb. HIV/AIDSc. shinglesd. influenza

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Topic 3: Viral Infections $300 Question

The enzyme that uses viral RNA as a template to produce complementary double-stranded DNA is

a. DNA polymerase.b. DNA ligase.c. RNA-dependent RNA polymerase.d. reverse transcriptase.

ANSWER

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Topic 3: Viral Infections $300 Answer

The enzyme that uses viral RNA as a template to produce complementary double-stranded DNA is

a. DNA polymerase.b. DNA ligase.c. RNA-dependent RNA polymerase.d. reverse transcriptase.

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Topic 3: Viral Infections $400 Question

Viruses that infect and lyse cancer cells are called

a. oncogenic viruses.b. latent viruses.c. oncolytic viruses.d. lysogenic viruses.

ANSWER

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Topic 3: Viral Infections $400 Answer

Viruses that infect and lyse cancer cells are called

a. oncogenic viruses.b. latent viruses.c. oncolytic viruses.d. lysogenic viruses.

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Topic 3: Viral Infections $500 Question

Viruses capable of inducing tumors in animals are called

a. oncogenic viruses.b. latent viruses.c. oncolytic viruses.d. lysogenic viruses.

ANSWER

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Topic 3: Viral Infections $500 Answer

Viruses capable of inducing tumors in animals are called

a. oncogenic viruses.b. latent viruses.c. oncolytic viruses.d. lysogenic viruses.

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Topic 4: Viruses and Cancer $100 Question

Cancer-causing alterations to cellular DNA affect parts of the genome called

a. introns.b. oncogenes.c. exons.d. promoters.

ANSWER

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Topic 4: Viruses and Cancer $100 Answer

Cancer-causing alterations to cellular DNA affect parts of the genome called

a. introns.b. oncogenes.c. exons.d. promoters.

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Topic 4: Viruses and Cancer $200 Question

Sarcoma is a cancer of ________ tissue.

a. nervousb. epithelialc. musculard. connective

ANSWER

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Topic 4: Viruses and Cancer $200 Answer

Sarcoma is a cancer of ________ tissue.

a. nervousb. epithelialc. musculard. connective

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Topic 4: Viruses and Cancer $300 Question

The ability of retroviruses to induce tumors is related to which enzyme?

a. reverse transcriptaseb. RNA polymerasec. DNA polymerased. protease

ANSWER

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Topic 4: Viruses and Cancer $300 Answer

The ability of retroviruses to induce tumors is related to which enzyme?

a. reverse transcriptaseb. RNA polymerasec. DNA polymerased. protease

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Topic 4: Viruses and Cancer $400 Question

Which of the following is NOT an effect of transformation?

a. T antigens appear in the nucleus of the cell.b. Cells lose their ability to divide.c. Cells tend to exhibit chromosomal

abnormalities.d. Tumor-specific transplantation antigens

appear on the cell surface. ANSWER

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Topic 4: Viruses and Cancer $400 Answer

Which of the following is NOT an effect of transformation?

a. T antigens appear in the nucleus of the cell.b. Cells lose their ability to divide.c. Cells tend to exhibit chromosomal

abnormalities.d. Tumor-specific transplantation antigens

appear on the cell surface.BACK TO GAME

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Topic 4: Viruses and Cancer $500 Question

What percentage of cancers are known to be virus-induced?

a. 10%b. 25%c. 50%d. 100%

ANSWER

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Topic 4: Viruses and Cancer $500 Answer

What percentage of cancers are known to be virus-induced?

a. 10%b. 25%c. 50%d. 100%

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Topic 5: Prions/Viroids $100 Question

A viroid is a

a. provirus.b. naked, infectious piece of RNA.c. capsid without a nucleic acid.d. complete, infectious virus particle.

ANSWER

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Topic 5: Prions/Viroids $100 Answer

A viroid is a

a. provirus.b. naked, infectious piece of RNA.c. capsid without a nucleic acid.d. complete, infectious virus particle.

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Topic 5: Prions/Viroids $200 Question

Viroids infect

a. animals.b. protozoans.c. plants.d. bacteria.

ANSWER

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Topic 5: Prions/Viroids $200 Answer

Viroids infect

a. animals.b. protozoans.c. plants.d. bacteria.

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Topic 5: Prions/Viroids $300 Question

Scrapie is an example of a ________ disease found in sheep and caused by a prion.

a. neurologicalb. gastrointestinalc. respiratoryd. cardiovascular

ANSWER

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Topic 5: Prions/Viroids $300 Answer

Scrapie is an example of a ________ disease found in sheep and caused by a prion.

a. neurologicalb. gastrointestinalc. respiratoryd. cardiovascular

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Topic 5: Prions/Viroids $400 Question

Prion diseases can be acquired via ALL of the following EXCEPT

a. ingestion.b. inhalation.c. contaminated surgical instruments.d. transplanted nerve tissue.

ANSWER

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Topic 5: Prions/Viroids $400 Answer

Prion diseases can be acquired via ALL of the following EXCEPT

a. ingestion.b. inhalation.c. contaminated surgical instruments.d. transplanted nerve tissue.

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Topic 5: Prions/Viroids $500 Question

It is hypothesized that viroids evolved from

a. viruses.b. exons.c. introns.d. prions.

ANSWER

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Topic 5: Prions/Viroids $500 Answer

It is hypothesized that viroids evolved from

a. viruses.b. exons.c. introns.d. prions.

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FINAL ROUND Question

Which type of viral nucleic acid functions as mRNA?

a. RNA, double-strandedb. RNA, – strandc. RNA, + strandd. RNA, reverse transcriptase

ANSWER

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FINAL ROUND Answer

Which type of viral nucleic acid functions as mRNA?

a. RNA, double-strandedb. RNA, – strandc. RNA, + strandd. RNA, reverse transcriptase

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