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Home Biochemistry RNA Structure Comments

  • Question
  • The tertiary structure of yeast tRNA


  • Options
  • A. involves extensive base stacking interactions
  • B. resembles the 3-dimensional structure of other tRNAs
  • C. is maintained mostly by non-Watson-Crick base pairing
  • D. all of the above

  • Correct Answer
  • all of the above 


  • RNA Structure problems


    Search Results


    • 1. Two features of the tRNA molecule associated, in converting the triplet codon to an amino acid, are

    • Options
    • A. in the T Loop and D stem and loop
    • B. in the anticodon loop and D stem loop
    • C. in the anticodon loop and the 3' CCA end
    • D. none of the above
    • Discuss
    • 2. RNA instability in alkaline solutions is due to

    • Options
    • A. adenine
    • B. ribose
    • C. uracil
    • D. single strand nature
    • Discuss
    • 3. The genetic material of retroviruses such as HIV is

    • Options
    • A. DNA
    • B. RNA
    • C. protein
    • D. all of these
    • Discuss
    • 4. A nicked RNA molecule can be ligated by

    • Options
    • A. T4 RNA ligase
    • B. DNA polymerase
    • C. T4 DNA ligase
    • D. all of these
    • Discuss
    • 5. What modified base is at the 5' extremity of a capped eukaryotic m-RNA?

    • Options
    • A. 1-methyl-adenosine
    • B. 2'-O-methyl-guanosine
    • C. 7-methyl-guanosine
    • D. 1-methyl-guanosine
    • Discuss
    • 6. During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence?

    • Options
    • A. 5'-Ap Tp Cp Gp-3'
    • B. 5'-Gp Cp Up Ap-3'
    • C. 5'-Gp Cp Tp Ap-3'
    • D. 5'-Ap Up Cp Gp-3'
    • Discuss
    • 7. In RNA, uracil pairs with

    • Options
    • A. adenine
    • B. cytosine
    • C. thymine
    • D. guanine
    • Discuss
    • 8. The mRNA from which of the following would contain a poly-A tail?

    • Options
    • A. A restriction endonuclease from E. coli
    • B. Bacterial alpha-amylase
    • C. Human insulin
    • D. Bacteriophage DNA ligase
    • Discuss
    • 9. What is the average size (in bp) of a mature t-RNA?

    • Options
    • A. 80 bp
    • B. 100 bp
    • C. 120 bp
    • D. 140 bp
    • Discuss
    • 10. Which of the following is the smallest of the RNAs?

    • Options
    • A. Messenger RNA
    • B. Transfer RNAs
    • C. Ribosomal RNAs
    • D. All of these
    • Discuss


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