Discussion
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- Question
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
- Correct Answer
- Human insulin
- 1. In RNA, uracil pairs with
Options- A. adenine
- B. cytosine
- C. thymine
- D. guanine Discuss
- 2. 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
- 3. 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
- 4. 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
- 5. RNA instability in alkaline solutions is due to
Options- A. adenine
- B. ribose
- C. uracil
- D. single strand nature Discuss
- 6. 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
- 7. 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
- 8. The peptidyl transferase reaction occurs
Options- A. on the large subunit
- B. on the small subunit
- C. between the subunit
- D. none of these Discuss
- 9. Which of the following amino acid starts all proteins synthesis?
Options- A. Glycine
- B. Proline
- C. Thymine
- D. Methionine Discuss
- 10. Degenerated codon differs mostly in
Options- A. the identities of their second base
- B. the identities of their third base
- C. the wobble position
- D. both (b) and (c) Discuss
RNA Structure problems
Search Results
Correct Answer: adenine
Correct Answer: 5'-Gp Cp Up Ap-3'
Correct Answer: all of the above
Correct Answer: in the anticodon loop and the 3' CCA end
Correct Answer: ribose
Correct Answer: 80 bp
Correct Answer: Transfer RNAs
Correct Answer: on the large subunit
Correct Answer: Methionine
Correct Answer: both (b) and (c)
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