SEARCH Articles Figures Tables Base mismatch Base pairing bases Base pairs Base-pairing mismatches Bases Base pair Mismatch Mismatch Watson-Crick base pairs Mismatched base pair Mismatched base pair Mismatched pair Mismatching Nucleic mismatched base pairs Purine-pyrimidine base pairs mismatch Structure of DNA Duplexes with Mismatched Base Pairs