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NEET MDS Quiz - Practice Test
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Practice Test

General Microbiology - 3 Questions

1
General Microbiology

What is the characteristic odor of cultures of proteus bacilli?

1) Fruity

2) Fishy or seminal

3) Sweet

4) Foul

📝 Explanation:

Proteus bacilli are known for their characteristic swarming motility on agar and a distinctive odor, which is often described as fishy or seminal. This is due to the production of ammonia and indole as metabolic byproducts.

2
General Microbiology

Which of the following is true about the fermentation characteristics of Bacillus anthracis?
1) Ferments salicin
2) Produces H2S abundantly
3) Ferments glucose, maltose, lactose, and sucrose
4) All of the above

📝 Explanation:

Bacillus anthracis ferments glucose, maltose, lactose, and sucrose, but does not ferment salicin or produce H2S abundantly.

3
General Microbiology

Which of the following bacteriophage types of diphtheria bacilli are associated with avirulent strains?
1) Type I and II
2) Type IV and VI
3) Type III
4) Type VII

📝 Explanation:

Type VII bacteriophage types of diphtheria bacilli are associated with avirulent strains.

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