Types of Plasmids and Their Biological significance The presence of plasmids in a cell can have a profound influence on the cells phenotype the ability of conjugation the ability of rhizobium to interact with plants the resistance to antibiotics and heavy metals the degradation of octane, camphor et al the production of enterotoxin the applications in genetic engineeringTypes of Plasmids and Their Biological Significance • The presence of plasmids in a cell can have a profound influence on the cell’s phenotype: – the ability of conjugation – the ability of Rhizobium to interact with plants – the resistance to antibiotics and heavy metals – the degradation of octane, camphor et al – the production of enterotoxin – the applications in genetic engineering