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NEET MDS Quiz - Practice Test
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Practice Test

General Microbiology - 3 Questions

1
General Microbiology

Which of the following is NOT a characteristic of anthracoid bacilli?
1) Generally motile
2) Non-capsulated
3) Grow in long chains
4) Pathogenic to laboratory animals

📝 Explanation:

Anthracoid bacilli are generally non-motile and non-capsulated, and they do not grow in long chains.

2
General Microbiology

What is the effect of Actinomycin D on orthomyxoviruses?

1) Stimulates multiplication

2) Inhibits multiplication

3) No effect

4) Enhances stability

📝 Explanation:

Actinomycin D is an antibiotic that inhibits RNA synthesis. In the case of orthomyxoviruses, it effectively inhibits their multiplication by preventing the transcription of viral RNA, thereby blocking the virus ability to replicate. Actinomycin D inhibits the multiplication of orthomyxoviruses by blocking RNA synthesis, which is crucial for viral replication.

3
General Microbiology

Which of the following is NOT a causative agent of dentoalveolar abscess?

1) Prevotella intermedia

2) P. melaninogenicus

3) Porphyromonas gingivalis

4) Fusobacterium nucleatum

📝 Explanation:

Prevotella intermedia and P. melaninogenicus (now known as Aggregatibacter actinomycetemcomitans) are both anaerobic bacteria that can be found in the oral cavity and are involved in the pathogenesis of periodontal diseases, including dentoalveolar abscesses. Fusobacterium nucleatum is another anaerobic bacterium commonly found in dental plaque and is associated with various oral infections, including dentoalveolar abscesses.

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