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Biotechnology Engineering

Biological Tools And Techniques MCQs

Practice Biological Tools And Techniques MCQs for competitive exams.

Biological Tools And Techniques MCQs

Practice questions from this topic.

An autoclave normally sterilizes material by heating the material to . . . . . . . . for . . . . . . . . minute at . . . . . . . . psi

  1. A. 100, 10, 30
  2. B. 121.5, 15, 15
  3. C. 110, 30, 5
  4. D. 120, 30, 10
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Which of the following physical treatments cause damage to bacterial cells by producing free radicals?

  1. A. Ultraviolet light
  2. B. Gamma ray irradiation
  3. C. Microwave irradiation
  4. D. Heat
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Which of the following techniques is most appropriate for determining crystalline structure of environmental samples?

  1. A. Infrared spectroscopy
  2. B. X - ray diffraction
  3. C. Microspectrophotometry
  4. D. Raman spectroscopy
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How is fluoride removed from drinking water?

  1. A. Reverse osmosis
  2. B. Distillation
  3. C. Freezing water
  4. D. Boiling water
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Lyophilisation is a process of

  1. A. Freeze drying
  2. B. Irradiation
  3. C. Heat drying
  4. D. Chemical treatment
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For identifying the distribution of a specific protein in a tissue, which one of the following types of immunofluorescence microscopic methods has attained the highest level of resolution?

  1. A. Indirect immunofluorescence microscopy
  2. B. Confocal microscopy
  3. C. Confocal microscopy with de-convolution
  4. D. Wide angle microscopy with de-convolution
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The ionizing radiation, which affects the activities of most of the enzymes is due to

  1. A. Photoemission of electron
  2. B. Interaction of α - particles, β - and γ - rays with enzymes
  3. C. Interaction of electron with body
  4. D. Interaction of radiation with tissue
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In gas chromatography, the basis for separation of the components of the volatile material is the difference in

  1. A. Partition coefficients
  2. B. Conductivity
  3. C. Molecular weight
  4. D. Molarity
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Which of the following would be the fastest way to kill endospores?

  1. A. Autoclave at 121°C
  2. B. Tincture of soap
  3. C. Hot air oven at 180°C
  4. D. Chlorox solution
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Which of the following treatment achieves sterilization?

  1. A. Autoclaving
  2. B. Boiling
  3. C. Freezing
  4. D. Pasteurization
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Which of the following instrument cap map the concentration of SO 2 over an area of land?

  1. A. LIDAR
  2. B. GC
  3. C. Spectrophaotometer
  4. D. Mass spectroscopy
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Which of the following experimental methods is not used to determine three-dimensional structures of biological macromolecules?

  1. A. Nuclear magnetic resonance spectroscopy
  2. B. Fluorescence spectroscopy
  3. C. X-ray crystallography
  4. D. Cryo-electron microscopy
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