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- Question
Which of the following properties is due to lysogenic conversion by phages?
Options- A. Toxin production in Corynebacterium diphtheriae
- B. Toxin production in Clostridium botulinum types C and D
- C. Antigenic variation in Salmonella anatum
- D. All of the above
- Correct Answer
- All of the above
- 1. Mac-Conkey medium is an example of
Options- A. transport medium
- B. enrichment medium
- C. differential medium
- D. all of these Discuss
- 2. The production of sufficient acid by fermentation of glucose leads to decrease in pH such that pH of the medium falls below 4.5. Which of the following test can detect it?
Options- A. Indole test
- B. Methyl red test
- C. Citrate utilization test
- D. Voges-Proskauer test Discuss
- 3. Stringent anaerobes can be grown in a media by taking special measure as
Options- A. boiling the media for several minutes
- B. addition of cysteine
- C. passing through oxygen-free nitrogen
- D. any of these Discuss
- 4. Which of the following modified amino acid is used at the starting of most prokaryotic proteins?
Options- A. N-formylserine
- B. N-formylmethionine
- C. N-formylleucine
- D. N-formylalanine Discuss
- 5. The viruses, which is/are transmitted by parenteral and sexual routes is/are
Options- A. Hepatitis B virus
- B. Hepatitis C virus
- C. Hepatitis G virus
- D. All of these Discuss
- 6. The most serious infection is
Options- A. superinfection of an HBsAg carrier by HDV
- B. infection with HBV alone
- C. coinfection of HBVand HDV
- D. none of the above Discuss
- 7. Which of the following does not represent a human disease caused by fungi?
Options- A. Ringworm
- B. Cryptococcosis
- C. Malaria
- D. Jock itch Discuss
- 8. Eukaryotic cell organelles first emerged
Options- A. from a specialized lineage of cells within the kingdom Protista
- B. when prokaryotes engulfed each other and became interdependent
- C. when bacteria made their first attempts at reproduction
- D. just before the origin of the animal and fungal kingdoms Discuss
- 9. Hepatitis G virus belongs to the family
Options- A. Caliciviridae
- B. Flaviviridae
- C. Hepadnaviridae
- D. Coronaviridae Discuss
- 10. The basidiomycetes include plant parasites that can cause
Options- A. rust and smut diseases
- B. candidiasis
- C. ergot disease
- D. Dutch elm disease & chestnut blight Discuss
More questions
Correct Answer: differential medium
Correct Answer: Methyl red test
Correct Answer: any of these
Correct Answer: N-formylmethionine
Correct Answer: All of these
Correct Answer: superinfection of an HBsAg carrier by HDV
Correct Answer: Malaria
Correct Answer: when prokaryotes engulfed each other and became interdependent
Correct Answer: Flaviviridae
Correct Answer: rust and smut diseases
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