Processes of Recombinant DNA Technology MCQ

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• Log phase is also known as _________
  ক

  lag phase

  খ

  exponential phase

  গ

  stationary phase

  ঘ

  decline phase
• Downstream processing also involves _________
  ক

  separation and purification

  খ

  mixing and hybridization

  গ

  separation and hybridization

  ঘ

  mixing and purification
• What facilitates the even mixing of ingredients within a bioreactor?
  ক

  Pipe

  খ

  Motor

  গ

  Stirrer

  ঘ

  Broth
• How many stages does a bacterial growth curve have?
  ক

  5

  খ

  1

  গ

  4

  ঘ

  3
• ________ growth conditions are required to obtain the maximum yield.
  ক

  Low

  খ

  High

  গ

  Equal

  ঘ

  Optimum
• _______ culturing method produces higher biomass and higher yield of the desired product.
  ক

  Batch

  খ

  Continuous

  গ

  Mixed

  ঘ

  Hybrid
• Which culture system is used to obtain cells in the exponential phase?
  ক

  Single

  খ

  Monochronous

  গ

  Continuous

  ঘ

  Batch
• If any protein-encoding gene is expressed in a heterologous host, it is called a _______ protein.
  ক

  pure

  খ

  mixed

  গ

  recombinant

  ঘ

  similar
• Recombinant DNA technology is associated with _______
  ক

  Christian Gram

  খ

  C. Darwin

  গ

  Robert Koch

  ঘ

  Herbert Boyer
• The common bacteria used in genetic engineering is _____
  ক

  S.typhi

  খ

  E.coli

  গ

  Rhizobium

  ঘ

  S.aureus
• The antibiotic resistance gene can be used as ________ marker for selecting transformants.
  ক

  selectable

  খ

  differential

  গ

  similar

  ঘ

  radioactive
• The enzyme which cleaves RNA is _______
  ক

  DNase

  খ

  ribonuclease

  গ

  ligase

  ঘ

  protease
• _______ is the building block of carbohydrates.
  ক

  Monosaccharide

  খ

  Amino acid

  গ

  Glycerol

  ঘ

  Fatty acids
• ______ is the monomer of proteins.
  ক

  Monosaccharide

  খ

  Fatty acids

  গ

  Amino acid

  ঘ

  Glycerol
• ______ is a monomer of lipids.
  ক

  Amino acid

  খ

  Monosaccharide

  গ

  Fatty acids

  ঘ

  Sugar
• Which macromolecules are present along with DNA within the cell?
  ক

  Viruses

  খ

  Bacteria

  গ

  Vectors, organelles

  ঘ

  Lipids, polysaccharides
• The restriction enzyme needs to be in _____ form to cut the DNA.
  ক

  impure

  খ

  pure

  গ

  mixed

  ঘ

  hybrid
• The enzyme which cleaves DNA is _______
  ক

  ligase

  খ

  lipase

  গ

  DNase

  ঘ

  RNase
• The fungal cells can be lysed by using ______ enzyme.
  ক

  lysozyme

  খ

  cellulase

  গ

  chitinase

  ঘ

  lipase
• The plant cells can be lysed by using ______ enzyme.
  ক

  lipase

  খ

  chitinase

  গ

  ligase

  ঘ

  cellulase
• The bacterial cells can be lysed by using ______ enzyme.
  ক

  protease

  খ

  lysozyme

  গ

  lipase

  ঘ

  cellulase
• The nucleic acid in most of the organisms is ______
  ক

  DNA

  খ

  RNA

  গ

  proteins

  ঘ

  lipids