BIOL108 Lecture Notes - Lecture 14: Horizontal Gene Transfer, Genetic Recombination, Extremophile

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And viruses cont: prokaryotic reproduction, reproduce asexually clones (e. g. , binary fission) butshort generation time. Increased genetic diversity: reproduce sexually conjugation via sex pili (singular: pilus = hair like extensions) Week 5: produce methane as a waste product, halophiles live in very salty habitats, halo = salt, where salt" is any ionic crystalline compound, not just. Nacl: thermophiles live in very hot habitats, therm = heat, some can live in water >100 c, some used for pcr techniques, most are free-living, though (soon, domain bacteria. Diverse: 5,000 species in one gram of soil. Numerous: molecular genetics allows us to see the previously hidden relationships among bacteria 5 major clades (not really phyla, not really kingdoms. Live in almost all habitats: 3012 (human) cells in the human body, 3912 bacterial cells in/on human body, we will focus on the symbiotic (as opposed to free- living) bacteria.

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