Discussion
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- Question
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
- Correct Answer
- 7-methyl-guanosine
- 1. The anticodon is a structure on
Options- A. mRNA.
- B. tRNA.
- C. aribosome.
- D. rRNA. Discuss
- 2. 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
- 3. Which of following RNA characteristically contains unusual purines and pyrimidmes?
Options- A. rRNA
- B. nRNA
- C. mRNA
- D. tRNA Discuss
- 4. Retroviruses replicate via __________ intermediate
Options- A. RNA
- B. DNA
- C. mRNA
- D. rDNA Discuss
- 5. What bands will be observed in a cesium chloride gradient after two rounds of replication?
Options- A. One light, one medium and one heavy band
- B. One light and one medium band
- C. One medium band
- D. One medium and one heavy band 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
RNA Structure problems
Search Results
Correct Answer: tRNA.
Correct Answer: It is a direct copy of a gene
Correct Answer: tRNA
Correct Answer: DNA
Correct Answer: One light and one medium band
Correct Answer: T4 DNA ligase
Correct Answer: RNA
Correct Answer: ribose
Correct Answer: in the anticodon loop and the 3' CCA end
Correct Answer: all of the above
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