micro final

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created 2 years ago by mattstheboom
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1

Which of the following is not true of horizontal gene transfer?

  1. A) Hfr males have an integrated F plasmid, F+ males have a cytoplasmic F plasmid.
  2. B) In F+X F- mating the F- becomes F+.
  3. C) Hfr X F- matings lead to chromosomal transfer from the Hfr to the F-.
  4. D) Generalized transducing phages come from temperate phages.
  5. E) Competency is required for uptake of free DNA from solution and can be induced by electroporation.

D) Generalized transducing phages come from temperate phages.

2
  1. Which of the following patterns of pathogenesis: (1). Adherence, (2). Colonization (Multiplication), (3). Exotoxin Production, (4). Invasion, (5). Invasion and Exotoxin Production, is characterized by Vibrio cholerae and ETEC?
  2. A) 1,2,3,4
  3. B) 1,2,3
  4. C) 1,2,4
  5. D) 1,2,5
  6. E) None of the above

B) 1,2,3