39. The Shine-Dalgarno sequence found in prokaryotic systems resides on the ______ end of ______ and is the ______ site.
(A) 3'; peptidyl-tRNA; formyl transferase
(B) 5'; DNA; polymerase binding
(C) 3'; rRNA; initiation factor binding
(D) 5'; mRNA; ribosome binding
(E) 3'; aminoacyl-tRNA; formyl methionine binding