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Detection of T.C mismatch of 547 bp DNA fragment by using hydroxylamine / piperidine assay. The control trace (homoduplex, top) shows no cleavage peak and the mismatched DNA trace (heteroduplex, bottom) displays a strong cleavage peak of 5'FAM sequence at the mismatched C base. Note this is the second chance of detecting the mutation, the first being in Fig 2.
