01:119:115 Lecture Notes - Pilus, Nitrification, Genetic Recombination

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: D'arville

Document Summary

Concept 27: 2: rapid reproduction, mutation, and genetic recombination promote genetic diversity in prokaryotes: prokaryotes have considerable genetic variation, three factors contribute, rapid reproduction, mutation, genetic recombination. Transduction: phages may carry pieces of a bacterial chromosome from one cell (the donor) to another (the recipient: lytic phages: 1: enzymes destroy host dna, hose dna segment is accidently incorporated into phage dna, new phage particle then infects new cell, lysogenic (prophage): 3: produces new phage that includes bacterial genes. Conjugation and plasmids: conjugation is the process where genetic material is transferee between two b. prokaryotic cells. Methicillin-resistant staphyloccous areus (msra) which can lead to lethal skin infections. In medical facilities, mrsa causes life-threatening bloodstream infections, pneumonia and surgical site infections. In nitrogen fixation, some prokaryotes convert atmospheric nitrogen n2 to ammonia no3 (rhizobia) Denitirfication: n2 returns to atmosphere as n2o or n2. Metabolic cooperation: cooperation between prokaryotes allows them to use env.