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TLS Online TPP Program

#Question id: 2661

In the histidine operon, if the codons coding for histidine were removed, which of the following would you predict would happen?

#XL - T Zoology

  1. the attenuator would form, stopping further transcription

  2. the attenuator would not form, stopping further transcription

  3. the attenuator would form, permitting transcription to continue

  4. the attenuator would not form, permitting transcription to continue

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TLS Online TPP Program

#Question id: 34334

#XL - S Microbiology

Which of the following can pass through a standard 0.22 µm membrane filter?
TLS Online TPP Program

#Question id: 34335

#XL - S Microbiology

Which of the following are used to validate sterilization procedures?
TLS Online TPP Program

#Question id: 34336

#XL - S Microbiology

Ethylene oxide gas sterilizes by which of the following mechanisms?
TLS Online TPP Program

#Question id: 34337

#XL - S Microbiology

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

#Question id: 34338

#XL - S Microbiology

Which of the following represent the mode of action of alcohol-based disinfectants?
TLS Online TPP Program

#Question id: 34339

#XL - S Microbiology

Which of the following explain how aldehydes sterilize microbial cells?