Question:

Transduction in bacteria is mediated by

Updated On: Aug 1, 2022
  • plasmid vectors
  • phage vectors
  • cosmids
  • F-factors.
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The Correct Option is B

Solution and Explanation

In transduction, genetic material of one bacterial cell goes to other bacterial cell by agency of bacteriophages or phages (viruses, infecting bacteria). Transduction was first of all reported in Salmonella typhimurium by Zinder and Lederberg (1952). Transduction is used for gene mapping and analysis in bacteria and also for strain construction.
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Concepts Used:

Viruses and Subviral Particles

  • Viruses are not the only submicroscopic bodies capable of causing disorders within cells.
  • Sub-viral particles are infectious agents that bear a resemblance to viruses in structure and composition. But they are notably smaller and simpler than viruses but lack either nucleic acid or protein and are thus not viruses. (Thus they may be proteins beyond nucleic acids or only nucleic acids beyond protein coat /capsid.)
  • There are 3 sub-viral agents.
    • Prions
    • Viroids
    • Virusoids