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CHAPTER 19, CHAPTER 27 - Coggle Diagram
CHAPTER 19
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Virus Life Cycles
Lytic cycle
virus replicates inside the host, leading to host cell death (virulent phages).
Lysogenic cycle
virus genome integrates into host DNA as a prophage, replicating without killing the host immediately; may later switch to lytic cycle
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CHAPTER 27
Movement, Genetics, and DNA Exchange
Taxis
The ability of bacteria to move toward or away from a stimulus (e.g., chemicals, light).
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Hfr cells
Cells with F factor integrated into their chromosome, leading to higher rates of genetic recombination.
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Metabolism, Ecology, and Special Features
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Nitrogen fixation
Some prokaryotes convert atmospheric nitrogen (N2) to ammonia (NH3).
Nitrogen fixation happens in specialized cells called heterocysts, which prevent oxygen penetration (since oxygen inhibits nitrogen fixation enzymes).
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