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Home Biochemistry Nucleic Acids See What Others Are Saying!
  • Question
  • A five carbon sugar lacking a hydrogen at the number 2 carbon is found in


  • Options
  • A. DNA
  • B. RNA
  • C. mRNA
  • D. rDNA

  • Correct Answer
  • DNA 


  • More questions

    • 1. Selenium is an essential component of the enzyme glutathione peroxidase which

    • Options
    • A. scavenges toxic hydoperoxycompounds in tissues
    • B. reduces toxic hydoperoxycompounds in tissues
    • C. oxidizes toxic hydoperoxycompounds in tissues
    • D. none of the above
    • Discuss
    • 2. Which of the following is not a structural motif in DNA binding proteins?

    • Options
    • A. bZIP
    • B. helix-turn-helix
    • C. TFIID
    • D. zinc finger
    • Discuss
    • 3. Buffer solutions

    • Options
    • A. will always have a pH of 7
    • B. are rarely found in living systems
    • C. cause a decrease in pH when acids are added to them.
    • D. tend to maintain a relatively constant pH.
    • Discuss
    • 4. Messelsen and Stahl model of replication was called

    • Options
    • A. conservative replication
    • B. semi-conservative replication
    • C. dispersive replication
    • D. Cri du Chat
    • Discuss
    • 5. Which of the following is a nonstandard amino acid?

    • Options
    • A. Cysteine
    • B. Isoleucine
    • C. Hydroxyproline
    • D. Histidine
    • Discuss
    • 6. The ultimate source of energy that sustains living systems is

    • Options
    • A. glucose
    • B. oxygen
    • C. sunlight
    • D. carbon dioxide
    • Discuss
    • 7. Ribosomes select the correct tRNAs

    • Options
    • A. then bind to the appropriate mRNA
    • B. solely on the basis of their anticodons
    • C. depending on their abundance in the cytosol
    • D. with the least abundant anticodons
    • Discuss
    • 8. Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

    • Options
    • A. both ends by one disulfide bond
    • B. either end via two disulfide bonds
    • C. either end via a single disulfide bond
    • D. both ends by two disulfide bonds
    • Discuss
    • 9. Which of the following amino acid is known as half-cystine residue?

    • Options
    • A. Cysteine
    • B. Isoleucine
    • C. Valine
    • D. Histidine
    • Discuss
    • 10. The nucleons of eukaryotic cell has

    • Options
    • A. RNA polymerase I
    • B. RNA polymerase II
    • C. RNA polymerase III
    • D. all of these
    • Discuss


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