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Home Biochemistry Protein and Nucleic Acid Interactions See What Others Are Saying!
  • Question
  • Which of the following amino acids can interact with the DNA or RNA nucleotide bases via hydrogen bonding?


  • Options
  • A. Asn and Gln
  • B. Cys and Met
  • C. Lys and Leu
  • D. Ile and Val

  • Correct Answer
  • Asn and Gln 


  • More questions

    • 1. The main difference between an acid and a base is that

    • Options
    • A. bases are polar molecules and acids are not
    • B. acids are polar molecules and bases are not
    • C. bases donate hydrogen ions in water while acids accept hydrogen ions
    • D. acids donate hydrogen ions in water while bases accept hydrogen ions
    • Discuss
    • 2. During vigorous exercise, pyruvate produced by glycolysis is converted to

    • Options
    • A. acetate
    • B. lactate
    • C. monosodium phosphate
    • D. pyruvic acid
    • Discuss
    • 3. What is the behavior in which T cells and B cells constantly travel throughout the body seeking out and destroying foreign substances?

    • Options
    • A. Antibody-mediated immune response
    • B. Immune surveillance
    • C. Cell-mediated immune response
    • D. Vaccination
    • Discuss
    • 4. Transcription results in

    • Options
    • A. an amino acid chain
    • B. messenger RNA
    • C. complementary DNA
    • D. Okazaki fragments
    • Discuss
    • 5. Restriction enzymes

    • Options
    • A. protect bacteria from viral infection
    • B. cut DNA in a staggered fashion
    • C. cut DNAs producing a blunt end
    • D. all of the above
    • Discuss
    • 6. A deficiency of Vitamin K results in a decreased level of

    • Options
    • A. prothrombin
    • B. thrombin
    • C. fibrin
    • D. fibrinogen
    • Discuss
    • 7. Buried hydrophobic side chains in a globular protein fit into a hole formed by the side chains of

    • Options
    • A. 1-3 other amino acids
    • B. 5-7 other amino acids
    • C. 9-12 other amino acids
    • D. 13-15 other amino acids
    • Discuss
    • 8. Common feature in all serine proteases is a

    • Options
    • A. hydrophobic specificity pocket
    • B. hydrophilic specificity pocket
    • C. cluster of reactive serine residues
    • D. single reactive serine residue
    • Discuss
    • 9. A ketogenic amino acid is one which degrades to

    • Options
    • A. keto-sugars
    • B. either acetyl CoA or acetoacetyl CoA
    • C. pyruvate or citric acid cycle intermediates
    • D. multiple intermediates including pyruvate or citric acid cycle intermediates and acetyl CoA or acetoacetyl CoA
    • Discuss
    • 10. If the egg white protein, ovalbumin, is denatured in a hard-boiled egg, then which of the following is least affected?

    • Options
    • A. The primary structure of ovalbumin
    • B. The secondary structure of ovalbumin
    • C. The tertiary structure of ovalbumin
    • D. The quaternary structure of ovalbumin
    • Discuss


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