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6. _________ is needed to bring the ribosomal subunits together and to provide the coding sequence of nucleotides that determines the amino acid sequence in the resulting polypeptide

  • mRNA
  • tRNA
  • Ribosome

7. The initiator tRNA carries modified methionine

  • True
  • False

8. Energy is required for codon recognition, this is given from the hydrolysis of GTP

  • True
  • False

9. A polypeptide is always formed in one direction Cterminus to Nterminus

  • False
  • True

10. The elongation process requires

  • Elongation factors
  • Initiation factorS

11. Peptide bond formation is catalysed by

  • Peptidyl transferase
  • Gyrase
  • Toposomierase

12. The Shine-Dalgarno sequence and the START codon signal for translation initiation

  • True
  • False

13. Polyribosomes are only found in bacterial cells

  • False
  • True

14. The E site

  • Exit site for the tRNA
  • Holds the tRNA holding the next amino acid
  • Holds the tRNA carrying the growing polypeptide chain

15. Each of these is attatched to a particular amino acid ,each codon binds to the anticodon on _______ which brings the amino acid into place ready for attatchment

  • tRNA
  • Ribosmone
  • mRNA

16. Eukaryotic mRNAs are

  • Monocystronic
  • Poycystronic

17. Aminoacyl tRNA synthetases catalyse the addition of _____ to its corresponding tRNA to make it a charged tRNA

  • Amino acid
  • Codon
  • Ribosome
  • mRNA

18. Initiation factors bring large and small subunits together along with the mRNA and intiator tRNA

  • True
  • False

19. Hydrolysis of GTP during codon recognition _________ accuracy and efficience

  • Increases
  • Decreases

20. The A site

  • Holds the tRNA carrying the growing polypeptide chain
  • Holds the tRNA holding the next amino acid
  • Exit site for the tRNA