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Prokaryotic Diversity quiz #2

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Termini in questo insieme (10)

  • Which processes are examples of horizontal gene transfer in bacteria?
    Transformation, transduction, and conjugation are examples of horizontal gene transfer in bacteria, while binary fission is not.
  • What is the shape of streptococci bacteria?
    Streptococci bacteria are spherical and form chains.
  • Which trait is not shared by most types of bacteria: peptidoglycan cell wall, nucleus, binary fission, or circular DNA?
    A nucleus is not a trait shared by most types of bacteria, as they lack a true nucleus.
  • Which bacteria are the most prevalent in the human gut?
    Firmicutes are the most prevalent bacteria in the human gut.
  • In what ways do prokaryotes differ from one another?
    Prokaryotes differ in cell wall composition, metabolic pathways, shapes, and ecological roles.
  • On which surfaces can biofilms form?
    Biofilms can form on all of the above surfaces: teeth, rocks, and medical devices.
  • Which characteristic is not true of Coxiella burnetii?
    Coxiella burnetii does not perform photosynthesis.
  • To which extreme environmental conditions is the spore resistant?
    The spore is resistant to all of the above: heat, radiation, and desiccation.
  • What is the role of cyanobacteria in the Earth's atmosphere?
    Cyanobacteria are responsible for the origin of oxygen in the Earth's atmosphere through oxygenic photosynthesis.
  • What is a key characteristic of spirochetes?
    Spirochetes are characterized by their corkscrew shape.