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MCQs

Total Questions : 56 | Page 5 of 6 pages
Question 41. In which of the following technique, the system is calibrated by using markers of known molecular weight to determine the unknown molecular weight?
  1.    Mass spectrometry
  2.    Ultracentrifugation
  3.    Gel filtration
  4.    SDS-gel electrophoresis
 Discuss Question
Answer: Option D. -> SDS-gel electrophoresis
Answer: (d).SDS-gel electrophoresis
Question 42. Which of the following is not a reason for selected source to be used readily for the production of enzymes?
  1.    Socio-economical
  2.    Political
  3.    Extraction procedure
  4.    Geographical
 Discuss Question
Answer: Option C. -> Extraction procedure
Answer: (c).Extraction procedure
Question 43. Which of the following should be implemented in case of extracting conjugating enzymes?
  1.    Apt chemical compounds
  2.    Suitable density gradient
  3.    Centrifugation technique
  4.    Proper filtration
 Discuss Question
Answer: Option B. -> Suitable density gradient
Answer: (b).Suitable density gradient
Question 44. The technology wherein gene transfer to host organisms by vectors is referred to as ________
  1.    rDNA technology
  2.    extraction
  3.    isolation
  4.    purification
 Discuss Question
Answer: Option A. -> rDNA technology
Answer: (a).rDNA technology
Question 45. Enzymes which are secreted outside the body cells are referred to as ________ enzymes.
  1.    extracellular
  2.    intracellular
  3.    cytoplasmic
  4.    mitochondrial
 Discuss Question
Answer: Option A. -> extracellular
Answer: (a).extracellular
Question 46. Protease is an intracellular enzyme.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 47. Which of the following is cationic detergent?
  1.    Sodium dodecyl sulphate (SDS)
  2.    Cetyl triethyl ammonium bromide
  3.    Sodium lauryl sulphate (SLS)
  4.    Triton-X-100
 Discuss Question
Answer: Option B. -> Cetyl triethyl ammonium bromide
Answer: (b).Cetyl triethyl ammonium bromide
Question 48. The techniques which adopts the hypertonic and hypotonic condition for cell lysis is referred to as ____________
  1.    EDTA treatment
  2.    Ultrasonification
  3.    Osmotic shock
  4.    Homogenization
 Discuss Question
Answer: Option C. -> Osmotic shock
Answer: (c).Osmotic shock
Question 49. __________________ is an example of anionic detergent.
  1.    Tween
  2.    Cetyl triethyl ammonium bromide
  3.    Sodium dodecyl sulphate (SDS)
  4.    Triton-X-100
 Discuss Question
Answer: Option C. -> Sodium dodecyl sulphate (SDS)
Answer: (c).Sodium dodecyl sulphate (SDS)
Question 50. Extraction of enzymes by physical methods include the usage of alkalis, EDTA, lysozyme, etc.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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