5. The genetic code is degenerate because
mRNA is rapidly degraded.
The code is not universal among organisms.
Some amino acids have more than one codon.
Frameshift mutations are tolerated.
Stop codons may have corresponding tRNA molecules

6. Each new DNA strand is initiated by a
Short RNA primer
Single-stranded DNA-binding protein
Precursor fragment
Restriction fragment
Specific DNA primer

7. Use the following diagram for the next question. Solid circles represent amino acids.

After the peptide bond forms, what will happen?
tRNA A will be carrying the polypeptide and it will shift to the P site.
tRNA A will be carrying the polypeptide and it will shift to the A site.
tRNA B will be carrying the polypeptide and it will shift to the P site.
tRNA B will be carrying the polypeptide and it will shift to the A site.

8. Simultaneous transcription and translation does NOT occur in which of the following locations?
cytoplasm of prokaryotes
cytoplasm of eukaryotes
the nucleus of eukaryotes
Simultaneous transcription and translation occurs in all of the above.

9. You identify a mutant whose chromosomes shorten after each round of replication. A mutation in which gene would explain this observation?
DNA polymerase
telomerase
DNA ligase
DNA gyrase

10. Which of the following is unique to eukaryotes?
5' polyadenylation of mRNA
Polycistronic mRNA
Coupled transcription-translation
Removal of introns
Polysomes