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Unformatted text preview: ____gamma radiation B. unsaturated hydrocarbons in membrane fatty acids ____hypersalinity C. elevated carbon monoxide reductase activity ____low pH D. active transport of H+ out of the cell E. efficient DNA repair enzymes F. antibiotic resistance 6. The polymerase chain reaction (PCR) is based on the activity of Taw polymerase, a DNA-synthesizing enzyme found in Bacteria isolated from a…. . a. Winogradsky column b. Home compost pile c. Yellow stone thermal spring d. N2- fixing soil sample 7. Beijerinck’s Selective Enrichment Culture technique is based primarily on assumptions about differences in…. a. Microbial biofilm structure b. Microbial microhabitats c. Microbial death rates d. Microbial quorum sensing 8. Dental carries-caused by Streptococcus mutans depend on a biofilm composed of a glycocalyx synthesized by …. a. Pseudomonas aeruginosa b. Superoxide dismutase c. Dextrtansucrase d. Streptococcus sobrinus...
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