SLSC 398 Lecture Notes - Lecture 8: Halogenation, Biodegradation, Horizontal Gene Transfer
Document Summary
When the cell wall is broke the dna is exposed to the enviroments ( happened a lot in drying and freezing events ) When it is cracked open it picks up foreign dna. Transformation - when the dna picks up dna from soil solution. Recombination - when foreign dna becomes integrated into the dna, interred into the dna chromosome. Bacteria picks up dna from the soil solution. Fragments in the soil solution are bits from partially digested fungi or protist or from bacteria. Bacteria breaks the plasmid into 2 ( it is unstable ) and it is inaccessible to other enzymes in the cell. It goes through conjugation, and you get partial transfer of plasmids to one cell. Required viruses and dna that is passed from cell to cell through viral infections. Most species has many viruses that infect it. In the soil there are viruses for all the bacteria, fungi, protists and vertebrates.
