The genetic ability of a bacterium to grow in the presence of several antibiotics is passed in vivo from one bacterium to another by_____________?

Correct answer: A. Conjugation

  • A. Conjugation
  • B. Rarefaction
  • C. Transduction
  • D. Transformation

Explanation

Conjugation transfers resistance plasmids, especially R plasmids, directly between living bacteria and commonly spreads multidrug resistance in vivo. Transformation uses naked DNA, while transduction uses bacteriophages.

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