Protein amino acid side chains can hydrogen bond in the major groove of DNA, and discriminate between each of the four possible base pairs.  In which one of the following groups of amino acids can all three members potentially be used in such DNA-protein recognition?

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#Question id: 34333

#XL - S Microbiology

Which of the following factors affect the efficacy of chemical disinfectants?

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#Question id: 34334

#XL - S Microbiology

Which of the following can pass through a standard 0.22 µm membrane filter?

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#Question id: 34335

#XL - S Microbiology

Which of the following are used to validate sterilization procedures?

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#Question id: 34336

#XL - S Microbiology

Ethylene oxide gas sterilizes by which of the following mechanisms?

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#Question id: 34337

#XL - S Microbiology

Which of the following mechanisms are responsible for the sterilizing effect of ionizing radiation (e.g., gamma rays)?

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#Question id: 34338

#XL - S Microbiology

Which of the following represent the mode of action of alcohol-based disinfectants?