Ch 13 Micro

  1. 1) In which of the following ways do viruses differ from bacteria?




    D)
  2. Which of the following statements provides the most significant support for the idea that viruses are nonliving chemicals?




    E)
  3. Which of the following statements about spikes is false?




    A)
  4. Which of the following is NOT used as a criterion to classify viruses?




    E)
  5. Which of the following is NOT a method of culturing viruses?




    B)
  6. Bacteriophages and animal viruses do NOT differ significantly in which one of the following steps?
    • A) AdsorptionB) PenetrationC) UncoatingD) BiosynthesisE) Release
    • D
  7.  The definition of lysogeny is




    C)
  8. A viroid is




    A)
  9. A clear area against a confluent "lawn" of bacteria is called a




    A)
  10. Continuous cell lines differ from primary cell lines in that




    E)
  11. Which of the following is necessary for replication of a prion?




    C)
  12. A persistent infection is an infection in which




    C)
  13. Which of the following statements is false?




    D)
  14. Lysogeny can result in all of the following EXCEPT




    C)
  15. Which of the following would be the first step in biosynthesis of a virus with a - strand of RNA?




    B)
  16. An infectious protein is a




    A)
  17. An envelope is acquired during which of the following steps?




    A)
  18. Which of the following contributes to the difficulty in establishing the etiology of cancer?




    E)
  19. An example of a latent viral infection is




    E)
  20. The most common route of accidental AIDS transmission to health care workers is




    E)
  21. Assume you have isolated an unknown virus. It is a single-stranded RNA, enveloped virus. To which group does it most likely belong?




    B)
  22. To which group does a small, nonenveloped single-stranded RNA virus most likely belong?




    E)
  23. The most conclusive evidence that viruses cause cancers is provided by




    D)
  24. Bacteriophages derive all of the following from the host cell EXCEPT




    C)
  25. Generalized transduction differs from specialized transduction in that generalized transduction




    E)
  26. Generally, in a DNA-containing virus infection, the host animal cell supplies all of the following EXCEPT




    C)
  27. Put the following in the correct order for DNA-virus replication: 1-Maturation;  2-DNA synthesis;  3-Transcription;  4-Translation.




    E)
  28. A viral species is a group of viruses that



    B)
  29. Viruses that have reverse transcriptase are in the




    B)
  30. DNA made from an RNA template will be incorporated into the virus capsid of




    E)
  31. Which of the following statements about viruses is false?




    E)
  32.  Approximately how many virus particles could fit along a 1-millimeter line?




    C)
  33. Some viruses, such as human herpesvirus 1, infect a cell without causing symptoms; these are called




    C)
  34. The following steps occur during multiplication of herpesviruses. What is the third step?




    D)
  35. The following steps occur during multiplication of retroviruses. What is the fourth step?




    C)
  36. Nontoxic strains of Vibrio cholerae can become toxic when they are in the human intestine with toxic strains of bacteria. This suggests that the toxin genes are acquired by




    D)
  37. Which one of the following steps does NOT occur during multiplication of a picornavirus?




    D)
  38. Which of the following is most likely a product of an early gene? 




    C)
  39. Most RNA viruses carry which of the following enzymes?




    A)
  40. The following steps occur during biosynthesis of a + strand RNA virus. What is the third step?




    A)
  41. Image Upload 1
    In Figure 13.1, which structure is a complex virus?
     A) a
    B) b
    C) c
    D) d
    E) All of the above
    Answer: B
  42. What contributes to antigenic shift in influenza viruses?




    E)
  43. Image Upload 2
    In Figure 13.1, the structures illustrated are composed of
    A) DNA.
    B) RNA.
    C) DNA or RNA.
    D) Capsomeres.
    E) Capsids.
    Answer: D
  44. Image Upload 3
     Assume a patient had chickenpox (human herpesvirus 3) as a child. Which line on the graph in Figure 13.2
    would show the number of viruses present in this person as a 60- year- old with shingles (human herpesvirus
    3)?
    A) a
    B) b
    C) c
    D) d
    E) e
    Answer: E
  45. Image Upload 4
     Assume a patient has influenza. During which time (on the graph in Figure 13.2) would the patient show the
    symptoms of the illness?
    A) a
    B) b
    C) c
    D) d
    E) e
    Answer: C
Author
becca.fowler
ID
324082
Card Set
Ch 13 Micro
Description
micro chapter 13
Updated