Answer:
In bacteria, the Shine-Dalgarno (SD) sequence is a ribosomal binding motif that is localized upstream the initiation codon and helps to bind the ribosomal subunit. Moreover, the formylmethionine (fMet) on tRNA is found in bacteria and also in eukaryotic organelles
In eukaryotes, the Kozak sequence (A/GCCACCAUGG) is a sequence that helps to start the translation process