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Mastering Microbiology Staining Techniques
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Mastering Microbiology Staining Techniques

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Questions and Answers

Which staining technique involves staining the background with an acid dye and leaving cells/capsules colorless?

  • Negative Staining (correct)
  • Positive Staining
  • Positive-Negative Staining
  • Gram Staining

    • What is the main difference between simple and complex staining techniques?

  • The duration of staining
  • The number of stains used (correct)
  • The type of stains used
  • The temperature of staining

    • Which staining technique involves staining the background with an acid dye, cells with a contrasting stain, and leaving capsules colorless?

  • Gram Staining
  • Positive-Negative Staining (correct)
  • Negative Staining
  • Positive Staining

    • Which type of genetic element is incapable of independent replication?

    <p>Transposons</p> Signup and view all the answers

    Which genetic element can carry antibiotic resistance genes and replicate independently of chromosomal replication?

    <p>Plasmids</p> Signup and view all the answers

    What is the main function of integrons?

    <p>Carrying antibiotic resistance genes</p> Signup and view all the answers

    Which genetic element can contain insertion sequences and transfer genetic information by insertion into bacterial chromosome or plasmids?

    <p>Transposons</p> Signup and view all the answers

    What are the extra chromosomal pieces of DNA called in the prokaryotic genome?

    <p>Plasmids</p> Signup and view all the answers

    Which genetic element can integrate into the bacterial chromosome and replicate with it?

    <p>Plasmids</p> Signup and view all the answers

    What are the groups of virulence-associated genes called that code for unique secretion systems, toxins, adhesins, and regulatory proteins?

    <p>Pathogenicity islands</p> Signup and view all the answers

    Which genetic element is observed in Mycobacterium tuberculosis resistance?

    <p>Integrons</p> Signup and view all the answers

    Which genetic element can carry the EM-1 β-lactamase gene of E. coli?

    <p>Plasmids</p> Signup and view all the answers

    Which genetic element can carry the heat-stable enterotoxin (ST) of E. coli?

    <p>Transposons</p> Signup and view all the answers

    Which of the following is true about the prokaryotic genome?

    <p>It contains extra chromosomal pieces of DNA called plasmids</p> Signup and view all the answers

    What is the function of plasmids in the prokaryotic genome?

    <p>To carry antibiotic resistance genes</p> Signup and view all the answers

    Which genetic element is capable of independent replication?

    <p>Plasmids</p> Signup and view all the answers

    What is the main function of transposons in the prokaryotic genome?

    <p>To transfer genetic information by insertion into bacterial chromosome or plasmids</p> Signup and view all the answers

    What is the main function of integrons in the prokaryotic genome?

    <p>To carry antibiotic resistance genes</p> Signup and view all the answers

    What are pathogenicity islands in the prokaryotic genome?

    <p>Groups of virulence-associated genes</p> Signup and view all the answers

    Which genetic element is observed in Mycobacterium tuberculosis resistance?

    <p>Integrons</p> Signup and view all the answers

    What is the main difference between simple and complex staining techniques?

    <p>The use of acid dyes</p> Signup and view all the answers

    Which genetic element can carry the heat-stable enterotoxin (ST) of E. coli?

    <p>Plasmids</p> Signup and view all the answers

    Which genetic element can integrate into the bacterial chromosome and replicate with it?

    <p>Plasmids</p> Signup and view all the answers

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