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GRE Biology: Introduction to Viruses Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. What are two of the most important surface proteins found on the influenza virus?

Question 2 2. During the process of viral replication _____.

Question 3 3. A virus with an icosahedral shape that has a surrounding lipid bilayer that facilitates infection is known as _____ virus.

Question 4 4. All of the following are reasons why the icosahedral shape is a common viral shape that affects animals EXCEPT:

Question 5 5. Which of the following are present in ALL virions?

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Question 6 6. Reverse transcriptase helps to convert:

Question 7 7. Is a case of antigenic drift or antigenic shift, which is more likely to be responsible for a flu pandemic and why?

Question 8 8. Why is antibiotic overuse such a serious problem?

Question 9 9. Which of the following describes a process that involves viral replications and assembly within a host, followed by bursting the host cell wall?

Question 10 10. Translation is where:

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Question 11 11. A scientist identifies a strand of RNA that can be used directly to code for important viral proteins during viral replication. What have they found?

Question 12 12. Why are scientists debating if viruses are living organisms?

Question 13 13. Which of the following is NOT a feature of reverse transcriptase?

Question 14 14. What is the function of a viral envelope?

Question 15 15. An enzyme that makes strands of nucleotides can be which of the following?

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Question 16 16. Which variant of the icosahedral shape is found in some bacteriophages?

Question 17 17. Which of the following best describes a polymerase?

Question 18 18. A temperate virus is one that will first _____.

Question 19 19. Which of the following describes a process that involves viral integration into the host genome?

Question 20 20. Bacteriophage genome that is incorporated into the host genome is called a:

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Question 21 21. Genes that encode for virulence factors are _____, and _____ are proteins that make pathogens more virulent.

Question 22 22. The cycle of viral replication that typically results in host cell death is called the:

Question 23 23. Why is RdRp important?

Question 24 24. _____ occurs when a microbe acquires a gene that allows it to resist the effects of a drug.

Question 25 25. Which of the following is NOT a reason why booster shots are given?

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Question 26 26. Which of the following statements about DNA viruses that affect humans is FALSE?

Question 27 27. A virulent virus is one that is:

Question 28 28. A U.S. zoo that is home to a group of Western Lowland Gorillas receives a new gorilla from Cameroon. Three weeks later, one of the zoo's chimpanzees that resides in an enclosure next to the gorillas becomes ill and dies two weeks later. The rest of the zoo's chimpanzees are also sick with a virus which cannot be identified. However, none of the gorillas are sick. Which of the following is the most likely explanation?

Question 29 29. How are glycoproteins important for a virus?

Question 30 30. Which of the following is NOT a characteristic of a virus?

GRE Biology: Introduction to Viruses Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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