Biology Quiz: DNA, RNA, and Organisms
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Questions and Answers

What term is used to describe the two strands of DNA based on their base pairing?

  • None of these
  • Identical
  • Oppositely charged
  • Complementary (correct)
  • What is RNA that is complementary to a segment of another RNA molecule called?

  • Missense RNA
  • None of these
  • Antisense RNA (correct)
  • Nonsense RNA
  • An organism with an optimal growth rate at very high hydrogen ion concentration is termed as:

  • Acidophile (correct)
  • Neutrophile
  • Aerotolerant anaerobe
  • Osmotolerant
  • Which organisms have more tolerance for acidic pH (lower pH)?

    <p>Yeast and moulds</p> Signup and view all the answers

    A culture broth tube is very turbid at the surface but clear throughout the rest of the tube, indicating that the organisms are:

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

    Study Notes

    DNA Structure

    • The bases of one strand of DNA are complementary to the bases of the second strand.

    RNA Types

    • Antisense RNA is a type of RNA that is complementary to a segment of another RNA molecule and will bind to it.

    Optimal Growth Conditions

    • An acidophile is an organism that has an optimal growth rate when the hydrogen ion concentration is very high.

    pH Tolerance

    • Yeast and moulds have more tolerance for acidic pH (lower pH).

    Bacterial Growth

    • A turbid culture broth tube at the surface but clear throughout the rest of the tube indicates that the organisms are aerobes.

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    Description

    Test your knowledge of biology concepts, including DNA base pairing, RNA, and organism growth rates.

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