Agarose gel electrophoresis analysis of bacteriophage DNA
Genome sizes of undigested or digested bacteriophage were determined by electrophoresis (Sambrook and Russell, 2001). The bands were stained with ethidium bromide (EB) and compared against a λ phage DNA digested with Hind III marker; where indicated, purified bacteriophage DNA samples were digested with restriction enzyme Dra I before comparison by gel electrophoresis (Chakrabarti et al., 2000).