Question 18 how does rna act like a messenger to deliver genetic code information? the dna code is translated by trna and then carried to the ribosomes by rrna. mrna duplicates the code from a single segment of dna and then carries it to trna. the dna replicates to form rna and then travels to the cell using proteins for transport. rna separates the double strands of dna, translates the code, and then carries amino acids to the cytoplasm.