BIOL 171 Lecture Notes - Lecture 8: Horizontal Gene Transfer, Gram-Negative Bacteria, Genetic Recombination

• School: UH, UH Manoa, UHM
• Department: Biology
• Course: BIOL 171
• Professor: Gerhart- Barley

Document Summary

Horizontal gene transfer: common in bacteria, sharing of dna between bacterium. Gram positive: no extra membrane, just several layers of pepty. Gram negative: extra membrane outside of cell wall with only one layer of pepty. Transformation: uptake of foreign dna from surroundings. Transduction: phages transfer prokaryotic genes from one host to another. Conjugation: dna transferred between cells with a phallus( f+ cell) Cyanobacteria: only group of bacteria that are photosynthetic. Methanogens:(live in hydro thermal vents) perform cytokinesis that produce methane. Skin surface: 150 species 10million per sq inch.