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RNA Structure (Biochemistry) Question and Answers-Page first

RNA Structure problems


  • 1. Retroviruses replicate via __________ intermediate

  • Options
  • A. RNA
  • B. DNA
  • C. mRNA
  • D. rDNA
  • Discuss
  • 2. Which of following RNA characteristically contains unusual purines and pyrimidmes?

  • Options
  • A. rRNA
  • B. nRNA
  • C. mRNA
  • D. tRNA
  • Discuss
  • 3. What is the function of messenger RNA?

  • Options
  • A. It carries amino acids
  • B. It is a component of the ribosomes
  • C. It is a direct copy of a gene
  • D. It is the genetic material of some organisms
  • Discuss
  • 4. The anticodon is a structure on

  • Options
  • A. mRNA.
  • B. tRNA.
  • C. aribosome.
  • D. rRNA.
  • 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. 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
  • 7. The genetic material of retroviruses such as HIV is

  • Options
  • A. DNA
  • B. RNA
  • C. protein
  • D. all of these
  • Discuss
  • 8. RNA instability in alkaline solutions is due to

  • Options
  • A. adenine
  • B. ribose
  • C. uracil
  • D. single strand nature
  • Discuss
  • 9. 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
  • 10. 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
  • Discuss

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