Q.1
For the correct addition of amino acid to the growing polypeptide chain which of the following does not play any role?
  • a) Loading of initiator tRNA to the P site
  • b) Loading of correct aminoacyl tRNA to the A site
  • c) Formation of peptide bond between the existing amino acid and the incoming amino acid
  • d) The formed tRNA with the growing polypeptide is translocated from the A site to the P site
Q.2
The events controlling the correct addition of amino acid is controlled by ____________ proteins.
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.3
The auxillary protein required for the elongation of polypeptide is energy independent.
  • a) True
  • b) False
Q.4
Aminoacyl tRNA needs an escort to carry them to the ribosome bound mRNA.
  • a) True
  • b) False
Q.5
Once the tRNA is aminoacylated, EF-Tu binds to the tRNA at the ____________
  • a) 5’ end of the tRNA
  • b) 3’ end of the tRNA
  • c) Amino acid
  • d) Variable loop of tRNA
Q.6
The activation of GTPase activity of the enzyme EF-Tu occurs after its binding to the aminoacylated tRNA.
  • a) True
  • b) False
Q.7
The only fidelity testing of the translation is by observing the energy difference involved in the correct and incorrect base pairing.
  • a) True
  • b) False
Q.8
How many mechanisms are involved in the maintenance of the fidelity of translation?
  • a) 1
  • b) 2
  • c) 3
  • d) 4
Q.9
Which part of the large subunit helps in the formation of the peptide bond?
  • a) 5S rRNA
  • b) Proteins
  • c) 23S rRNA
  • d) 18S rRNA
Q.10
Which of the following steps is not required for the process of translocation?
  • a) Frame shift in hybrid states
  • b) Movement of P site tRNA to E site
  • c) Movement of A site tRNA to P site
  • d) Movement of ribosome by three nucleotides
Q.11
The completion of translocation requires the action of the factor _________________
  • a) EF-Tu
  • b) EF-G
  • c) eIF2
  • d) eIF4G
0 h : 0 m : 1 s