MICROBIOLOGY LAB WEEK 10 QUESTIONS AND CORRECT ANSWERS 2025/2026
MICROBIOLOGY LAB WEEK 10 QUESTIONS AND CORRECT ANSWERS 2025/2026 UV light has ______ wavelengths than visible light waves, and its peak energy is at a wavelength of ______. - Answer -shorter; 254nm Which of the following would be appropriately sterilized using UV radiation? - stainless steel surface in biological safety cabinet used for media preparation - flask of nutrient broth - stack of plastic petri dishes, prior to pouring media - nutrient agar plates with lids - Answer -stainless steel surface in biological safety cabinet used for media preparation Which of the following DNA sequences would be the most likely to be damaged by UV radiation? - Answer -CTTGAATTAA Which of the following infectious agents is least likely to be damaged by UV exposure? - protozoa - prions- bacteria - fungi - viruses - Answer -prions Which structures are less susceptible to UV damage? - Fungal spores - Endospores - Protozoan cysts - Vegetative bacterial cells - Answer -- Endospores - Protozoan cysts When two adjacent thymine molecules are joined by a covalent bond as a result of exposure to UV light, this structure is referred to as a - Answer -thymine dimer. Which of the following are limitations of using UV radiation for disinfection?
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microbiology lab week 10 2025
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