Figure 1From: Nuclease-resistant double-stranded DNA controls or standards for hepatitis B virus nucleic acid amplification assaysVerification of the Recombinant pGEM-HBV C+S Plasmid. The PCR amplification products from recombinant pGEM-HBVc+s were analysed using ethidium-bromide-stained 1% agarose gel. Lanes 1, 2, and 3: negative control with no template; Lane 4: positive control of recombinant clones; Lane 5 and 6: PCR products of positive recombinant clones.Back to article page