Negative Bacteria MCQ

Test your knowledge with important Negative Bacteria MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Negative Bacteria MCQs at Bissoy

• Blanty’s group of mini-IncP plasmids has a maximum size of _______ kb.
  ক

  1

  খ

  3

  গ

  5

  ঘ

  7
• P-group plasmids are not widely used as vectors because of their _____________
  ক

  Big size

  খ

  Small size

  গ

  Toxicity

  ঘ

  Host range
• IncP alpha and InP beta are _________ host range vectors.
  ক

  Overlapping

  খ

  Narrow

  গ

  Broad

  ঘ

  Specific
• IncP alpha plasmids are smaller in size than IncPbeta plasmids.
  ক

  True

  খ

  False
• What is the size of IncP alpha plasmids?
  ক

  20 kb

  খ

  40 kb

  গ

  60 kb

  ঘ

  80 kb
• Which resistance is lost if DNA is inserted in EcoR1 or BstEII sites?
  ক

  Sulphonamide

  খ

  Alcohol

  গ

  Ampicillin

  ঘ

  Streptomycin
• Insertion of DNA fragment between PstI sites ____________ the resistance determinant.
  ক

  Activates

  খ

  Inactivates

  গ

  Weakens

  ঘ

  Removes
• How many unique cleavage sites are located within the antibiotic resistance determinants of plasmid RSF1010?
  ক

  0

  খ

  2

  গ

  4

  ঘ

  6
• How many PstI sites in plasmid RSF1010?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• What is the length of DNA of RSF1010?
  ক

  4684 bp

  খ

  6684 bp

  গ

  7684 bp

  ঘ

  8684 bp
• RSF1010 specifies resistance to how many antimicrobial agents?
  ক

  1

  খ

  2

  গ

  3

  ঘ

  4
• If the selectable markers are not expressed in the new host, then ____________ is necessary.
  ক

  Helper phage

  খ

  Manipulations

  গ

  Temperature control

  ঘ

  Recombination
• The vector used for cloning in non-enteric bacteria must also be able to replicate in E.coli.
  ক

  True

  খ

  False
• In Gram-negative bacteria other than E.coli, it is used as a ___________
  ক

  Hybrid vector

  খ

  Main host

  গ

  Inhibitor

  ঘ

  Intermediate host
• What is required to clone DNA in non-enteric bacteria?
  ক

  Enzymes

  খ

  PCR

  গ

  Plasmid

  ঘ

  Phage