RNA Structure Quiz
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Questions and Answers

What type of bond joins nucleotide polymers in RNA?

  • Ionic bonds
  • Hydrogen bonds
  • Covalent bonds
  • Phosphodiester bonds (correct)
  • What is the main difference between RNA and DNA?

  • RNA is considerably larger than DNA
  • RNA is double-stranded while DNA is single-stranded
  • RNA contains deoxyribose while DNA contains ribose
  • RNA contains uracil while DNA contains thymine (correct)
  • What is the function of ribosomal RNA in the cell?

  • To interact with ribosomal proteins (correct)
  • To store genetic information
  • To carry amino acids to the ribosome
  • To catalyze chemical reactions
  • What is the Svedberg unit?

    <p>A unit of molecular weight and shape</p> Signup and view all the answers

    What percentage of total RNA in the cell is made up of rRNA?

    <p>80%</p> Signup and view all the answers

    What type of sugar is found in RNA?

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

    What is the function of ribosomal proteins in the cell?

    <p>To interact with ribosomal RNA</p> Signup and view all the answers

    What type of bond joins nucleotide polymers in RNA?

    <p>Phosphodiester bonds</p> Signup and view all the answers

    What is the main difference between RNA and DNA?

    <p>RNA contains uracil while DNA contains thymine</p> Signup and view all the answers

    What is the function of ribosomal RNA in the cell?

    <p>To interact with ribosomal proteins</p> Signup and view all the answers

    Which of the following is NOT one of the four rRNA species?

    <p>5S</p> Signup and view all the answers

    What is the Svedberg unit?

    <p>A unit of molecular weight and shape</p> Signup and view all the answers

    What percentage of total RNA in the cell is made up of rRNA?

    <p>80%</p> Signup and view all the answers

    What type of sugar is found in RNA?

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

    What is the difference between uracil and thymine?

    <p>Uracil has a carbonyl group instead of a methyl group like thymine</p> Signup and view all the answers

    What is the function of ribosomal proteins in the cell?

    <p>To interact with ribosomal RNA</p> Signup and view all the answers

    What is the molecular weight and shape of a molecule related to?

    <p>The sedimentation rate in a centrifugal field</p> Signup and view all the answers

    What type of bond joins the nucleotide polymer in RNA?

    <p>Phosphodiester bond</p> Signup and view all the answers

    What is the major difference between RNA and DNA?

    <p>RNA contains uracil while DNA contains thymine</p> Signup and view all the answers

    What is the function of ribosomal RNA in the cell?

    <p>Interacting with ribosomal proteins</p> Signup and view all the answers

    What is the total percentage of rRNA in the cell?

    <p>80%</p> Signup and view all the answers

    What are the four rRNA species found in the cell?

    <p>28S, 18S, 5.8S, and 5S</p> Signup and view all the answers

    What is the Svedberg unit?

    <p>A unit of molecular weight and shape</p> Signup and view all the answers

    What is the sugar found in RNA?

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

    What is the base that replaces thymine in RNA?

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

    What is the shape of the phosphodiester bond in RNA?

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

    What is the difference between 5S and 5.8S rRNA?

    <p>Their length</p> Signup and view all the answers

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