In: Biology
The protein synthesis can be divided in three phases: initiation, elongation and termination.
a. Describe the initiation phase as it takes place in bacteria.
b. The initiation phase in pro- and eukaryotes begin differently, when it concern the recognition of mRNA, describe these differences.
c. tRNA transport amino acids to the ribosome. Which part of the tRNA molecule form a covalent link to the amino acid? And what is the name for the general class of enzymes that catalyse the formation of a covalent bond between tRNA and aminoacids?
d. Describe the mechanism which ensure that only the amino acid threonine is attached to threonyl-tRNA.