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