Fig. 1From: Detection of Beijing strains of MDR M. tuberculosis and their association with drug resistance mutations in katG, rpoB, and embB genesAgarose gel electrophoresis results of multiplex- PCR products on a 3% agarose gel: Lanes 1 to 5 showing Beijing strains (129 & 523 bp fragments); lane 7 showing a non-Beijing strain (104 & 523 bp fragments); lane M: 100-bp DNA ladder (Bangalore Genei)Back to article page