Bacterial Evolution
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Questions and Answers

Which method is commonly used to discover many types of bacteria that cannot be grown in a lab?

  • Eukaryotic organelles
  • Metagenomic analysis with environmental DNA (correct)
  • Horizontal gene transfer
  • Physiology and Phylogeny
  • Why is the Biological Species Concept not applicable for defining bacterial species?

  • Bacteria cannot interbreed
  • Bacteria do not have external phenotypes
  • Bacteria are asexual and do not reproduce (correct)
  • Bacteria are hard to differentiate under the microscope
  • Which molecule is commonly used to determine the phylogenetic relationships among bacterial species?

  • Environmental DNA
  • Metagenomic analysis
  • 16ssrRNA
  • 16srRNA (correct)
  • Why is the Geological Species Concept more effective for bacterial species compared to other organisms?

    <p>Bacterial 16srRNA has a slow mutation rate</p> Signup and view all the answers

    Why is the 16ssrRNA only accurate for long periods and not short time spans?

    <p>It has a very low mutation rate</p> Signup and view all the answers

    Why is the Biological Species Concept not applicable for defining bacterial species?

    <p>Bacteria cannot interbreed and produce viable offspring</p> Signup and view all the answers

    Why is the Geological Species Concept more effective for bacterial species compared to other organisms?

    <p>Bacteria have a slower mutation rate than other organisms</p> Signup and view all the answers

    Which method is commonly used to discover many types of bacteria that cannot be grown in a lab?

    <p>Metagenomic analysis</p> Signup and view all the answers

    Why is the 16ssrRNA only accurate for long periods and not short time spans?

    <p>16ssrRNA is only accurate for long time spans</p> Signup and view all the answers

    Why are Physiology and Phylogeny not always linked in bacteria?

    <p>Bacteria have horizontal gene transfer</p> Signup and view all the answers

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