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Structure & Function of 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!

Page 1

Question 1 1. What happens to the host cell at the end of the lytic cycle?

Question 2 2. How can viruses enter a host?

Question 3 3. What is the function of HIV integrase?

Question 4 4. A particle that is spread from one organism to another and contains the viral genome is called what?

Question 5 5. What family of virus does Ebola virus belong to?

Page 2

Question 6 6. What type of genome does Ebola virus have?

Question 7 7. Which variant of the icosahedral shape is found in some bacteriophages?

Question 8 8. How is a Helical virus different from an Icosahedral virus?

Question 9 9. Which of the following is the best definition of a virion?

Question 10 10. What is the function of a viral envelope?

Page 3

Question 11 11. What is the primary difference between the lytic and lysogenic cycle?

Question 12 12. Which of the following describes the first step in the lysogenic cycle?

Question 13 13. What stage of the virus' life cycle comes after reverse transcription?

Question 14 14. What happens during reverse transcription?

Question 15 15. 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?

Page 4

Question 16 16. DNA viruses replicate in the:

Question 17 17. A temperate virus is one that will first _____.

Question 18 18. Which of the following refers to the process by which viruses are expelled out of their host cell?

Question 19 19. What type of virus is the Ebola virus?

Question 20 20. Which of the following is a therapeutic target that would prevent entry of the Ebola virus into a cell?

Page 5

Question 21 21. Is a case of antigenic drift or antigenic shift, which is more likely to be responsible for a flu pandemic and why?

Question 22 22. Which of the following is TRUE about antigenic drift?

Question 23 23. A host cell that can't prevent the reproduction of viruses inside it is called a _______.

Question 24 24. DNA is ______ into RNA which is ______ into protein.

Question 25 25. What is the fatality rate of Ebola virus disease?

Page 6

Question 26 26. A virus with an icosahedral shape that has a surrounding lipid bilayer that facilitates infection is known as _____ virus.

Question 27 27. A virus that infects a bacteria is known as a(n):

Question 28 28. What is the usual method of virion release in a lysogenized host?

Question 29 29. What does the matrix protein p17 do?

Question 30 30. RNA viruses replicate in the:

Structure & Function of 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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