RNA Structure MCQs : This section focuses on the "RNA Structure". These Multiple Choice Questions (MCQs) should be practiced to improve the RNA Structure skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.
Which of following RNA characteristically contains unusual purines and pyrimidmes?
What is the average size (in bp) of a mature t-RNA?
A. 80 bp
B. 100 bp
C. 120 bp
D. 140 bp
In RNA, uracil pairs with
A nicked RNA molecule can be ligated by
A. T4 RNA ligase
B. DNA polymerase
C. T4 DNA ligase
D. all of these
Which of the following is the smallest of the RNAs?
A. Messenger RNA
B. Transfer RNAs
C. Ribosomal RNAs
D. All of these
RNA instability in alkaline solutions is due to
D. single strand nature
Retroviruses replicate via __________ intermediate
During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence?
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'
The mRNA from which of the following would contain a poly-A tail?
A. A restriction endonuclease from E. coli
B. Bacterial alpha-amylase
C. Human insulin
D. Bacteriophage DNA ligase
What modified base is at the 5' extremity of a capped eukaryotic m-RNA?
The genetic material of retroviruses such as HIV is
D. all of these
The anticodon is a structure on
Two features of the tRNA molecule associated, in converting the triplet codon to an amino acid, are
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
The tertiary structure of yeast tRNA
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
What is the function of messenger RNA?
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