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Home ‣ Microbiology ‣ Spirochacter and Enterobacteriaceac See What Others Are Saying!
- Question
Which of the following genus belongs to family Spirochaetaceae?
Options- A. Treponema
- B. Spirochaeta
- C. Borrelia
- D. All of these
- Correct Answer
- All of these
- 1. Which of the following defines an open reading frame (ORF)?
Options- A. A sequence of genome in bacteriophage
- B. The sequence of a complete genome
- C. A plasmid vector used in genome sequencing
- D. A possible gene predicted by DNA sequencing Discuss
- 2. The bacterial sore throat is caused by
Options- A. Staphylococcus aureus
- B. Haemophilus spp
- C. Streptococcus pyogenes
- D. Mycoplasma pneumoniae Discuss
- 3. The temperate phage possesses a gene that codes for a repressor protein which makes the cell resistant to lysis initiated by
Options- A. the prophage
- B. lytic infection by other viruses
- C. Both (a) and (b)
- D. none of these Discuss
- 4. Because it can be used with a variety of media and allow a resuscitation step the __________ technique has become the common and often preferred method of evaluating the microbiological characteristics of water.
Options- A. most probable number
- B. Winogradsky
- C. MUG
- D. membrane filtration Discuss
- 5. Which of the following property(ies), shown by the organisms belong(s) to the family Enterobacteriaceae?
Options- A. They are catalase-positive
- B. They are oxidase-negative
- C. They ferment glucose
- D. All of these Discuss
- 6. The hepadnaviruses such as hepatitis B virus are quite different from other DNA viruses with respect to genome replication. These replicate their DNA using
Options- A. DNA-dependent DNA polymerase
- B. reverse transcriptase
- C. Rnase H
- D. DNA ligase Discuss
- 7. Which of the following disease is caused by Yersinia enterocolitica in man?
Options- A. Gastroenteritis
- B. Mesenteric lymphadenitis
- C. Septicaemia
- D. All of these Discuss
- 8. Surface taint in butter which is blamed on Pseudomonas putrefaciens is also called as
Options- A. rabbito
- B. putridity
- C. both (a) and (b)
- D. none of these Discuss
- 9. The technique(s), used for the assay of heat-labile enterotoxin produced by Escherichia coli, is/are
Options- A. Steroid production in Yl mouse adrenal cell culture
- B. Morphological changes in Chinese hamster ovary
- C. Enzyme-linked immunosorbent assay
- D. All of these Discuss
- 10. The affinity of an enzyme for its substrate, when the enzyme has a Km of 0.50 M will be __________ than the affinity of an enzyme for its substrate when the enzyme has a Km of 0.05 M.
Options- A. greater
- B. lesser
- C. approximately equal
- D. half Discuss
More questions
Correct Answer: A possible gene predicted by DNA sequencing
Correct Answer: Streptococcus pyogenes
Correct Answer: Both (a) and (b)
Correct Answer: membrane filtration
Correct Answer: All of these
Correct Answer: reverse transcriptase
Correct Answer: All of these
Correct Answer: both (a) and (b)
Correct Answer: All of these
Correct Answer: lesser
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