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- Question
Novobiocin can be used against
Options- A. gram +ve Staphylococci
- B. gram -ve Meningococci & Gonococci
- C. Haemophilus
- D. all of these
- Correct Answer
- all of these
- 1. Saprophytic bacteria cause
Options- A. sliminess or souring in piled, wet and heating vegetables
- B. brown rot in vegetables
- C. black rot in fruits
- D. bacterial soft rot Discuss
- 2. Species of __________ are predominant on thawing vegetables like sweet corn and peas when the temperature of thawing is fairly low.
Options- A. Streptococcus
- B. Micrococcus
- C. both (a) and (b)
- D. none of these Discuss
- 3. Bacterial ropiness in milk is caused by
Options- A. slimy capsular material from the cells usually gums or mucins
- B. slimy capsular material from the cells usually proteins
- C. slimy capsular material from the cells usually lipids
- D. all of the above Discuss
- 4. 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
- 5. The bacterial sore throat is caused by
Options- A. Staphylococcus aureus
- B. Haemophilus spp
- C. Streptococcus pyogenes
- D. Mycoplasma pneumoniae Discuss
- 6. 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
- 7. 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
- 8. 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
- 9. 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
- 10. 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
More questions
Correct Answer: sliminess or souring in piled, wet and heating vegetables
Correct Answer: Micrococcus
Correct Answer: slimy capsular material from the cells usually gums or mucins
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
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