Virus Take Home Quiz

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1. Which of the following statements describes a difference between how viruses reproduce and how cells reproduce?

1 point

Viruses need to enter a living cell to reproduce, but cells reproduce on their own.

Viruses need carbon dioxide to reproduce, but cells need oxygen to reproduce.

Viruses reproduce by DNA translation, whereas cells reproduce by DNA transcription.

Viruses can reproduce sexually or asexually, whereas cells only reproduce sexually.

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2. Which process is illustrated in the diagram below (diagram 1)?

1 point

virus transformation

virus reproduction (lytic cycle)

DNA transcription

virus reproduction (lysogenic cycle)

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diagram 1

3. In diagram 1 above, in step 2, what is taking place?

1 point

virus enters host cell

host cell is "reading" virus DNA

Virus DNA enters host cell

Viruses are being assembled

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4. A tomato plant in a greenhouse was found to be infected with tobacco mosaic virus. A few weeks later, nearby plants were also found to be infected with the virus. Which of the following best describes how the virus reproduced?

1 point

The virus produced seeds in the tomatoes

The virus immediately killed the host plant and was free to reproduce.

The virus made its own spores.

The virus used the host plant’s resources and machinery to reproduce.

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5. Which statement about HIV is correct? (select all that are correct)

2 points

HIV is a retrovirus.

HIV is the virus that causes AIDS.

HIV is a RNA virus.

HIV uses the immune system cells to reproduce.

6. Which of the following statements is true?

1 point

The flu virus has the same structure as a bacteriophage.

The common cold can be cured with medication.

Antibiotics don’t work on viruses.

Flu viruses use DNA rather than RNA as their genetic material.

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7. Which of the following would a physician NOT do to protect against a the spread of a viral disease?

1 point

prescribe an antibiotic

recommend bed rest to those who become ill

administer a vaccination

encourage good hygiene

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8. A virus’s nucleic acid is surrounded by a(n)

1 point

protein coat.

membrane

tail.

endospore.

nuclear membrane.

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9. The instructions for making new copies of a virus are

1 point

found only in bacteriophages.

coded in surface proteins attached to the protein coat.

coded in either RNA or DNA.

a part of a virus’s tail.

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10. Which of the following is NOT a viral disease?

1 point

ebola

diphtheria

Heptatitis

HIV

influenza

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11. A lytic cycle concludes with the

1 point

embedding of viral DNA into the host cell’s DNA.

production of a bacteriophage.

bursting of the host cell.

production of messenger RNA.

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12. Which of the following do all disease-causing viruses need in order to reproduce?

1 point

the equipment of the host cell

reverse transcriptase

a signal from other viruses

amino acids

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13. The HIV virus and the T2 bacteriophage virus HAVE this in common:

1 point

they both have RNA

they both classified as DS DNA virues

they both have a membrane coat

they both contain genetic material

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14. Which letter would best fit the following description: Viral DNA has been "read" and host cell has started to manufacture more virus genetic material and viral proteins

1 point

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15. Which letter would best illustrate the lysogenic cycle?

1 point

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16. In the videos you were asked to watch, Mr. Anderson states that viruses can have as their nucleic acid (check all that apply)

3 points

single stranded RNA

double stranded RNA

mRNA

single stranded DNA

double stranded DNA

17. Which of the following do all disease-causing viruses need in order to reproduce?

1 point

a signal from other viruses

reverse transcriptase

the equipment of the host cell

amino acids

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18. The basic structure of a virus contains: check all that apply

1 point

choloresterol

protein coat

nucleus

a nucleic acid

a cell wall

19 Which of the following could you treat with an antibiotic?

1 point

influenza

common cold virus (Rhino Virus)

Staphylococcus and Streptococcus bacterial infection

HIV, genital herpes

Mumpls, measles

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20. The ABC strategy (as it relates to viruses that can be transmitted through sexual contact) stands for

1 point

Almost, Be Faithful, Condom

Abstinence, Be careful, Control

Abstinence, Be faithful, Considerate

Abstinence, Be faithful, Condom

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21. Viruses have been found to infect (check all that apply)

1 point

animal cells

human cells

plant cells

bacterial cells

22. Which of the following is NOT a component of HIV?

1 point

RNA

Reverse Transcriptase

Protein

Glycoprotein "spikes"

nucleus

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23. According to Mr. Anderson's video (and our discussion in class), some viruses also have an envelope as an outside layer. This envelope is make up of

3 points

nucleic acid

Protein

lipids

RNA

carbohydrates

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24. According to Mr. Anderson's video, Benjamin Franklin was curious as to what causes

3 points

chicken pox

viruses to jump from lysogenic cycle to lytic cycle

common colds

viral replication

viruses to mutate

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