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Agarose gel (2%) electrophoresis representing PCR amplification of 10 constituent fragments of the 100-bp ladder. Lane 1 = 100 bp; lane 2 = 200 bp; lane 3 = 300 bp; lane 4 = 400 bp; lane 5 = 500 bp; lane 6 = 600 bp; lane 7 = 700 bp; lane 8 = 800 bp; lane 9 = 900 bp; lane 10 = 1,000 bp, Lane M = a commercial 100 bp DNA ladder (Product No. SM0323, Fermentas, USA) . The 1,000 and 500 bp bands of the DNA ladder are specifically marked.
