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MCQs

Total Questions : 195 | Page 4 of 20 pages
Question 31. Production of L-lysine can be carried out by
  1.    C. glutamicum
  2.    B. flavum FA 1-30
  3.    B. flavum
  4.    All of these
 Discuss Question
Answer: Option D. -> All of these
Answer: (d).All of these
Question 32. Most biopolymers produced by micro-organisms are
  1.    cell wall constituents
  2.    nucleic acids
  3.    histones
  4.    exopolysaccharides
 Discuss Question
Answer: Option D. -> exopolysaccharides
Answer: (d).exopolysaccharides
Question 33. Microbial rennet, which is used in cheese manufacture is produced by
  1.    Mucor spp
  2.    Aspergillus spp
  3.    Bacillus spp
  4.    Saccharomyces spp
 Discuss Question
Answer: Option B. -> Aspergillus spp
Answer: (b).Aspergillus spp
Question 34. The precursor used for production of vitamin B12 by Streptomyces olivaceus is
  1.    cobalt chloride
  2.    cobalt sulphate
  3.    calcium chloride
  4.    calcium sulphate
 Discuss Question
Answer: Option A. -> cobalt chloride
Answer: (a).cobalt chloride
Question 35. The citric acid is recovered from the fermentation broth as
  1.    calcium citrate
  2.    magnesium citrate
  3.    zinc citrate
  4.    none of these
 Discuss Question
Answer: Option A. -> calcium citrate
Answer: (a).calcium citrate
Question 36. Rhizopus nigricans produces which of the following products?
  1.    Citric acid
  2.    Fumaric acid
  3.    Gibberellic acid
  4.    Lactic acid
 Discuss Question
Answer: Option B. -> Fumaric acid
Answer: (b).Fumaric acid
Question 37. Invertase causes hydrolysis of ___________
  1.    starch
  2.    sucrose
  3.    proteins
  4.    pectins
 Discuss Question
Answer: Option B. -> sucrose
Answer: (b).sucrose
Question 38. Bacterial chromosome has the capacity to code for ____________ different proteins.
  1.    900
  2.    300
  3.    1500
  4.    3500
 Discuss Question
Answer: Option D. -> 3500
Answer: (d).3500
Question 39. Which is the functional unit of inheritance?
  1.    DNA
  2.    Chromosome
  3.    Gene
  4.    RNA
 Discuss Question
Answer: Option C. -> Gene
Answer: (c).Gene
Question 40. Populations of cells descending from a single cell are known as ____________
  1.    mutants
  2.    clones
  3.    wild-type cells
  4.    parent cell
 Discuss Question
Answer: Option B. -> clones
Answer: (b).clones

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