Toxin production Properties Dispensable, but essential under certain situations where survival and spread are at stake Genes frequently carried on plasmids and temperate bacteriophage BIOL 533 7 Lecture 9BIOL 533 7 Lecture 9 Toxin Production • Properties – Dispensable, but essential under certain situations where survival and spread are at stake – Genes frequently carried on plasmids and temperate bacteriophage