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Characteristics of viable ϕXG4J variants with chromosomal duplications. (A) Profiles of extracts generated from WT-, ϕXG4J-, ϕXG4J+210-, and ϕXG4J+21-infected cells. (B) Specific infectivity (PFU/A260) and heat stability (% survival at t = 20) of purified particles from panel A. All values have been normalized to the wild type and incorporate three replicates.
