CH 9 Archaeobacteria—prokaryotic organisms lacking peptidoglycan in their cell walls and differing from eubacteria in many ways. Binomial nomenclature—by Linnaeus where each organism is assigned a genus and specific epithet (2nd name) Cyanobacteria—photosynthetic, prokaryotic, typically unicellular organisms that are members of kingdom Monera Divergent evolution—process where descendents of a common ancestor species undergo sufficient change to be identified as separate species DNA hybridization—process where double strands of DNA of ea. Of 2 …showed first 75 words of 3358 total…

…showed last 75 words of 3358 total…is greater than either can achieve aloneSynthetic drug—antimicrobial agent synthesized chemically in the labTetracycline—antibacterial agent that inhibits protein synthesis Therapeutic dosage level—level of drug dosage that successfully eliminates a pathogenic organism if maintained over a period of timeToxic dosage level—amount of a drug necessary to cause host damageZone of inhibition—clear area that appears on agar in the disk diffusion method, indicating where the agent has inhibited growth of the organism