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MCQs

Total Questions : 39 | Page 2 of 4 pages
Question 11. Name the acid present in the cell wall of bacteria which helps in retaining its color during the acid-fast test?
  1.    Mycolic acid
  2.    Teichoic acid
  3.    Malic acid
  4.    Tartaric acid
 Discuss Question
Answer: Option A. -> Mycolic acid
Answer: (a).Mycolic acid
Question 12. Which of the following bacteria is pleomorphic?
  1.    Mycobacteria
  2.    Streptococcus
  3.    Pseudomonas
  4.    Corynebacterium
 Discuss Question
Answer: Option D. -> Corynebacterium
Answer: (d).Corynebacterium
Question 13. Which of the following organisms have thick peptidoglycan in their cell wall?
  1.    Gram-negative bacteria
  2.    Gram-positive bacteria
  3.    Yeast
  4.    Molds
 Discuss Question
Answer: Option B. -> Gram-positive bacteria
Answer: (b).Gram-positive bacteria
Question 14. Gram staining is specialized staining.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 15. Extrachromosomal DNA present in prokaryotes is called_______
  1.    Cocci group of bacteria
  2.    Chainlike group of bacteria
  3.    Plasmid
  4.    Grapelike cluster of bacteria
 Discuss Question
Answer: Option C. -> Plasmid
Answer: (c).Plasmid
Question 16. Which of the following is NOT the property of plasmid?
  1.    Rolling circle replication
  2.    Narrow host range
  3.    Two closely related plasmids cannot coexist in the same cell
  4.    Encodes gene products that are essential for growth
 Discuss Question
Answer: Option B. -> Narrow host range
Answer: (b).Narrow host range
Question 17. Name the plasmid which makes host cell resistance to the antibiotic.
  1.    Hfr
  2.    F-plasmid
  3.    Col plasmid
  4.    R-plasmid
 Discuss Question
Answer: Option D. -> R-plasmid
Answer: (d).R-plasmid
Question 18. Name the type of plasmid which has no identified function or phenotypic properties?
  1.    Cryptic plasmid
  2.    R-plasmid
  3.    High-frequency recombination
  4.    Col plasmid
 Discuss Question
Answer: Option A. -> Cryptic plasmid
Answer: (a).Cryptic plasmid
Question 19. Which of the following plasmid found in eukaryotes?
  1.    Col plasmid
  2.    2μ circle
  3.    F-plasmid
  4.    Hfr
 Discuss Question
Answer: Option B. -> 2μ circle
Answer: (b).2μ circle
Question 20. Name the type of bacteria which uses CO₂ as a sole source of carbon for growth.
  1.    Organotrophs
  2.    Heterotrophs
  3.    Autotrophs
  4.    Lithotrophs
 Discuss Question
Answer: Option C. -> Autotrophs
Answer: (c).Autotrophs

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