Nucleic Acids and Base Pairing Quiz
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Questions and Answers

What are the monomers of nucleic acids?

  • Fatty acids
  • Monosaccharides
  • Nucleotides (correct)
  • Amino acids
  • Which type of sugar is found in DNA?

  • Galactose
  • Deoxyribose (correct)
  • Glucose
  • Ribose
  • How are nucleotides in a DNA strand linked?

  • Phosphodiester bonds (correct)
  • Peptide bonds
  • Glycosidic bonds
  • Hydrogen bonds
  • What is the direction of nucleic acid synthesis?

    <p>5'-to-3'</p> Signup and view all the answers

    Which of the following is NOT a nitrogenous base found in nucleic acids?

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

    In which molecule is uracil found instead of thymine?

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

    What is the function of nucleic acids?

    <p>Genetic information storage</p> Signup and view all the answers

    Which type of bond is responsible for holding together the two strands of DNA in the double helix structure?

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

    Which molecule was likely the first catalyst and could have acted as a catalyst for its own replication and for synthesis of proteins?

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

    What property of some RNA molecules makes them similar to enzymes?

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

    Which modern-day enzyme catalyzes the synthesis of DNA from RNA in retroviruses?

    <p>Reverse transcriptase</p> Signup and view all the answers

    What property of ribozymes allows them to catalyze peptide linkages?

    <p>Ribonucleotide composition</p> Signup and view all the answers

    Which experimental evidence supports the hypothesis that short RNA molecules catalyze nucleotide polymerization?

    <p>An artificial ribozyme can assemble short RNAs into longer molecules.</p> Signup and view all the answers

    What is the primary function of an artificial ribozyme that can catalyze the assembly of short RNAs into longer molecules?

    <p>Self-replication</p> Signup and view all the answers

    Which cellular structure is responsible for separating living cells from their external environment?

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

    Which nucleotide plays a crucial role in energy transfer reactions and is a component of ATP?

    <p>Adenosine triphosphate (ATP)</p> Signup and view all the answers

    In DNA sequencing, which process is used to make a complementary RNA copy of a DNA strand?

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

    What is the role of GTP in biochemical reactions, particularly in intracellular signaling?

    <p>Secondary messenger molecule in signaling cascades</p> Signup and view all the answers

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