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. 2017 Jul 12;12(7):e0181062. doi: 10.1371/journal.pone.0181062

Fig 1. Conventional multiplex PCR.

Fig 1

During conventional multiplex PCR with overlapping amplicons, four amplicons are produced. For each cycle, Amplicon 3 can be amplified from not only the original template, but also Amplicons 1, 2, and 4. Its growth overtakes the reaction and hinders the amplification of the target amplicons.