H mRNA 5'--G AGC CUA CG G AU---3' OOC-C-NH Ammino acid Insertion-GU AG C CU AC G GA U binding site Adaptor letion HG UAC C GGA U mRN CUAUGACUAGUCGG Insertion and GUAAGCCA CGGAU Nucleotide triplet deletion coding for Reading frame amino neid restored we27-2 f gue 27-3