Biochemistry Quiz
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Questions and Answers

What is the best-known nucleic acid?

  • Adenine
  • RNA
  • Cytosine
  • Deoxyribonucleic acid (DNA) (correct)

    • Which nitrogen bases are classified as purines?

  • Guanine and thymine
  • Cytosine and uracil
  • Adenine and cytosine
  • Adenine and guanine (correct)

    • What is the role of phosphoric acid in nucleotides?

  • Facilitates protein synthesis
  • Provides the 'acid' in nucleic acid (correct)
  • Carries genetic information
  • Forms the sugar-phosphate backbone

    • What is a nucleoside?

    <p>A combination of a nitrogen base with a 5-carbon sugar</p> Signup and view all the answers

    Which nucleotide component approaches another molecule to form nucleic acid?

    <p>Hydrogen (the nitrogen base) approaches another molecule that contains an -OH group (a sugar)</p> Signup and view all the answers

    Enzymes are not involved in the synthesis of proteins

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

    Cytosine and thymine are both purine nitrogen bases

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

    Nucleosides are composed of a nitrogen base and a 6-carbon sugar

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

    Uracil is found in DNA but not in RNA

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

    Phosphoric acid is not a component of nucleotides

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

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