Guidelines for Choosing Host-Vector Systems MCQ

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• Plant cell cultures are better than animal cultures.
  ক

  True

  খ

  False
• What is the full form of AOX in Pichia pastoris expression system?
  ক

  Artificial oxidase

  খ

  Acetone oxidase

  গ

  Alcohol oxidase

  ঘ

  Acetyl oxidase
• B. subtilis has a number of problems that have hindered its commercial adoption mainly due to:
  ক

  Increased levels of proteins

  খ

  Decreased levels of proteins

  গ

  Increased levels of proteases

  ঘ

  Decreased levels of proteases
• Secretion and excretion are two different terms.
  ক

  True

  খ

  False
• Pyrogen is __________
  ক

  Antibiotic

  খ

  Non-toxic

  গ

  Drug

  ঘ

  Fever inducer
• Endotoxins are intracellular not harmful.
  ক

  True

  খ

  False
• Resolubilization is generally for the chemical alternations.
  ক

  True

  খ

  False
• Inclusion bodies are devoid of proteins.
  ক

  True

  খ

  False
• Heat shock method uses ___________
  ক

  Calcium rich environment

  খ

  Magnesium rich environment

  গ

  Potassium rich environment

  ঘ

  Sodium rich environment
• E.coli is not a perfect host due to __________
  ক

  Non-proteolytic degradation

  খ

  Proteolytic degradation

  গ

  Retained intercellularly

  ঘ

  Production at medium levels
• What is the full form of GRAS in the regulatory approval of food products?
  ক

  Generally regarded as sacred

  খ

  Generally recognized as safe

  গ

  Generally recommended as standard

  ঘ

  Generally recognized standard
• Post-translational modification includes which type of protein modification?
  ক

  Ionic

  খ

  Non-covalent

  গ

  Covalent

  ঘ

  Metallic