Bacterial Genetics and Genome Quiz
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Questions and Answers

What is the main function of plasmids in bacteria?

  • To transfer genetic material from one bacterial cell to another through conjugation (correct)
  • To help bacterial cells defend against environmental factors such as antibiotics
  • To act as a template for synthesizing complementary DNA strands
  • To replicate independently in the absence of protein synthesis
  • Which type of plasmids are usually large in size and present in few (1-5) copies per cell?

  • Plasmids capable of independently replicating
  • Resistance or R plasmids
  • Relaxed replicating plasmids
  • Stringent plasmids (correct)
  • Which method of gene transfer among bacteria involves the transfer of free DNA released from a donor bacterium into the extracellular environment which can be taken up by another bacteria?

  • Chromosomal DNA transfer
  • Natural Transformation (correct)
  • Conjugation
  • Development of competence
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