Figure 2From: Analysis of Bordetella pertussis pertactin and pertussis toxin types from Queensland, Australia, 1999–2003 QH8F-QH2R PCR Product Sizing. Ethidium bromide stained 3% agarose gel electrophoresis of QH8F-QH2R primer pair PCR products for sequence confirmed prn1, prn2 and prn3 containing B. pertussis isolates. Sizing against Invitrogen 25 bp DNA Ladder illustrates PCR product sizes of 270 bp, 285 bp and 270 bp respectively.Back to article page