These are: . Transformation . Transduction . Conjugation
1. Transformation occurs when fragments of exogenous bacterial DNA are taken up and absorbed into recipient bacterial cells. Transformation of genes from one bacterium to another results in
. Change in pathogenicity of the bacterium. . Change in antibiotic sensitivity pattern of bacterium. Competence: The recipient bacterium must be competent to absorb the exogenous fragments of bacterial DNA. Frequency: The frequency of transformation is low.