Intermicrobial Gene Transfer Bacterial cells sharing DNA allowing for new traits that are oftern beneficial to bacterial and harmful to humans Examples o Pilus formation o Capsule formation o Toxin production o Enzyme production o Antibiotic resistance 1 Conjugation Conjugation pilus transfers genes Plasmids are the F cell donor F is the recipient Conjugation pilus brings F and F cell together Donor plasmids get replicated so it does not need to give up their plasmid to the recipient New plasmid gets threaded through pilus New plasmid gets replicated to the new cell creating R Plasmid means resistance plasmid resistance to another F cell antibiotic drugs 2 Transformation Incorporations of DNA from the environment 2 potential outcomes o Unsuccessful Transformation degradation DNA immediately broken down and does not work anymore o Stable Transformation Incorporation of plasmids gets bacteria to uptake this plasmid 3 Transduction Transfer of bacterial DNA by a virus 2 Types o Generalized Random segments of DNA transferred to recipient Penetration Synthesis Assembly New virus is put out into the environment New cell infected with virus from donor o Specialized Specific segments of DNA transferred
View Full Document