Virus Quiz: DNA, RNA & the Diseases They Cause

1. Which of the following best describes the primary structural difference between DNA and RNA viruses?

DNA viruses always have a larger genome than RNA viruses

RNA viruses use ribose sugar in their nucleotides; DNA viruses use deoxyribose

DNA viruses replicate in the nucleus; RNA viruses replicate only in the cytoplasm

RNA viruses are always single-stranded; DNA viruses are always double-stranded

Submit

3. A virus with a lipid envelope derived from the host cell membrane would most likely be susceptible to which disinfectant?

Alcohol

Quaternary ammonium compounds

Both alcohol and quaternary ammonium compounds

Neither; enveloped viruses are resistant to all chemical disinfectants

4. True or False: The influenza virus causes disease primarily through direct destruction of host cell membranes during viral egress.

True

False

5. Which viral replication strategy involves the production of a negative-sense RNA intermediate that serves as a template for mRNA synthesis?

Positive-sense RNA replication

Negative-sense RNA replication

DNA-dependent RNA synthesis

RNA-independent protein synthesis

Submit

7. Which of the following diseases is caused by a DNA virus?

Measles

Chickenpox

Poliomyelitis

Hepatitis C

8. True or False: All RNA viruses require the enzyme reverse transcriptase to replicate their genetic material.

True

False

Submit

10. Which mechanism allows some viruses to avoid immune detection by acquiring human cell surface proteins during viral assembly?

Antigenic drift

Molecular mimicry

Envelope acquisition

Latency establishment

Submit

12. True or False: Prions are considered viruses because they contain RNA and cause infectious diseases in humans.

True

False

13. Which of the following best explains why the influenza virus can evade the immune system year after year?

It lacks a lipid envelope

It undergoes antigenic drift and antigenic shift

It integrates into host chromosomes

It produces reverse transcriptase

Submit

15. Which combination of characteristics best defines an enveloped RNA virus like measles?

Lipid membrane, negative-sense RNA, replicates in nucleus

Lipid membrane, positive-sense RNA, replicates in cytoplasm

Lipid membrane, double-stranded RNA, integrates into host DNA

No lipid membrane, negative-sense RNA, replicates in nucleus

Virus Quiz: DNA, RNA & the Diseases They Cause

1. Which of the following best describes the primary structural difference between DNA and RNA viruses?

2.

What first name or nickname would you like us to use?

2. Retroviruses carry reverse transcriptase because they must convert their ____ genome into DNA for integration into the host chromosome.

3. A virus with a lipid envelope derived from the host cell membrane would most likely be susceptible to which disinfectant?

4. True or False: The influenza virus causes disease primarily through direct destruction of host cell membranes during viral egress.

5. Which viral replication strategy involves the production of a negative-sense RNA intermediate that serves as a template for mRNA synthesis?

6. The ____ is the protein coat that surrounds and protects the viral nucleic acid.

7. Which of the following diseases is caused by a DNA virus?

8. True or False: All RNA viruses require the enzyme reverse transcriptase to replicate their genetic material.

9. Coronaviruses use a ____ reading frame shift during translation to produce multiple essential proteins from a single mRNA molecule.

10. Which mechanism allows some viruses to avoid immune detection by acquiring human cell surface proteins during viral assembly?

11. The hepatitis B virus causes chronic infection in humans because it integrates into host cell ____.

12. True or False: Prions are considered viruses because they contain RNA and cause infectious diseases in humans.

13. Which of the following best explains why the influenza virus can evade the immune system year after year?

14. Herpesviruses establish ____ infections, meaning they remain dormant in host cells and can reactivate later.

15. Which combination of characteristics best defines an enveloped RNA virus like measles?