Protein synthesis Flashcards
1
Q
no viral genome encodes a complete translational apparatus, so translation of viral mRNA is wholly dependent on the host cell
What is the role of tRNAs
A
tRNAS are molecules that link specific amino acids with individual codons in the mRNA
2
Q
What is meant by polycistronic mRNA?
A
polycistronic mRNA has one long mRNA, with multiple ORFs, which allow multiple different proteins be produced from one mRNA
most human eukaryotic mRNAs are monocistronic - they encode only a single protein
3
Q
What are the steps of translation?
A
initiation
elongation - ribosome catalyses the formation of a peptide bond between polypeptide and incoming amino acid, to extend polypeptide chain
termination
