NEET MDS Quiz - Practice Test

1

General Microbiology

Which of the following statements is true about the colony morphology and cultural characteristics of Anthrax bacilli?

1) Anthrax bacilli are motile and produce a turbidity in broth.

2) The Medusa head appearance is seen in non-virulent strains of anthrax bacilli.

3) Virulent capsulated strains form smooth colonies.

4) The inverted fir tree appearance is characteristic of Anthracoid bacilli.

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

The Medusa head appearance is characteristic of virulent strains of anthrax bacilli.

2

General Microbiology

Which of the following hepatitis viruses has a single-stranded RNA genome?

1) Hepatitis A

2) Hepatitis B

3) Hepatitis C

4) Hepatitis D

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Hepatitis C virus (HCV) is known for its single-stranded RNA genome. This characteristic is crucial for its classification and understanding its replication cycle, which involves RNA-dependent RNA polymerase.

3

General Microbiology

Which of the following describes the colony morphology of Bacillus anthracis on an agar plate?
1) Smooth and shiny
2) Irregularly round with a frosted glass appearance
3) Small and translucent
4) Large and mucoid

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Bacillus anthracis colonies on an agar plate typically appear irregularly round with a frosted glass appearance.

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