RNA Structure and Function? RNA acts at two levels: Genetic and Functional Genetically: carry the genetic information from DNA Functionally: Structural role Messenger RNA (mRNA) RibosomaIrna (rrNa) Transfer RNA(tRNA) Catalytic RNA: RibozymeRNA Structure and Function? RNA acts at two levels: Genetic and Functional: Genetically: carry the genetic information from DNA; Functionally: Structural role • Messenger RNA (mRNA) • Ribosomal RNA (rRNA) • Transfer RNA (tRNA) • Catalytic RNA: Ribozyme