a. Outline the steps of the ribosome cycle. At what stage do the
ribosomal subunits bind to each other? To mRNA? What causes them to
dissociate when protein synthesis is complete? In detail.
b. Outline the steps by which aminoacyl tRNA synthetases charge
tRNAs. How can some organisms get away with having fewer than 20
synthetases, yet still charge tRNAs with all 20 amino acids? In
detail.