Which of the following features is common between the bacterial and eukaryotic ribosomes in translation initiation?
A) They both use an initiator tRNA that carries formylmethionine.
B) They both bind to the 5' end of the mRNA and move forward to find the start codon.
C) They both recognize the start codon by interacting with the Shine-Dalgarno sequence.
D) They both interact with various translation initiation factors.
E) All of the above.

Question

Quizplus · Accepted Answer

The initiator tRNA in eukaryotes carries methionine. Unlike the cap-binding and the 5'-to-3' "scanning" of the mRNA by the eukaryotic translation initiation machinery, bacterial ribosomes find the start codon by directly interacting with the ribosome-binding sites in the mRNA. Initiation factors in both systems assist the ribosomes in initiating with high efficiency and speed.

Which of the Following Features Is Common Between the Bacterial