MLPA (A) 1A 18 exon 13 10 56991121141518 11-2 8 2224 1719c|2 13 Using multiplex ligation-dependent probe amplifi cation(MLPa) to identify an exon 13 deletion in the BrCal gene.(A) Results from a control sample. Numbered peaks represent products from each exon; peaks labeled c are control probes. B)The same analysis on DNA from a patient with breast cancer. In comparison with the control mple the exon 13 peak is only half the size.MLPA Using multiplex ligation-dependent probe amplifi cation (MLPA) to identify an exon 13 deletion in the BRCA1 gene. (A) Results from a control sample. Numbered peaks represent products from each exon; peaks labeled c are control probes. (B) The same analysis on DNA from a patient with breast cancer. In comparison with the control sample, the exon 13 peak is only half the size