Problem: Which mRNA sequence(s) would form a structure that is a cue for transcription termination of some genes in E. coli? Choose one or all that apply. Which mRNA sequence(s) would form a structure that is a cue for transcription termination of some genes in E. coli? Choose one or all that apply. 5'-GCAUCUUACUGAUGCUUUU-3' 5'-GGCCCUUUUACCCGGUUUU-3' a stem-loop hairpin structure preceded by a sequence of uracil residues a stem-loop hairpin structure followed by a sequence of uracil residues in the RNA a sequence of uracil-adenine RNA-DNA base pairs