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Which of the following transport bacterial DNA to other bacteria via bacteriophages?

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

Answer: B

Correct answer: Transduction

Transduction is the transfer of bacterial DNA from one cell to another inside a bacteriophage particle. During phage assembly a fragment of host DNA is mistakenly packaged into a capsid, and when that particle infects a new cell it injects bacterial rather than viral DNA, which may then recombine into the recipient's chromosome.

Conjugation needs direct cell contact and a mating bridge, and transformation is uptake of naked DNA from the medium; neither involves a phage. Translation is protein synthesis and is not a mode of gene transfer at all.

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