Question

Small peritrichous rods that produce bright pink or red pigment:

• A. Pseudomonas racemosa
• B. Serratia marcescens
• C. Rhodotorulum mucilaginosa
• D. Chryseobacterium indologenes

Hint:

Serratia marcescens: red pigment (prodigiosin).
Small peritrichous rod.
Common environmental organism.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Some bacteria produce characteristic pigments.
These pigments help in identification.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the pigment-producing bacteria.
Step 3: Detailed Explanation:
Serratia marcescens produces a bright pink or red pigment called prodigiosin.
It is a small peritrichous rod.
Pseudomonas racemosa produces a different pigment.
Rhodotorulum mucilaginosa is a yeast.
Chryseobacterium indologenes produces yellow pigment.
Thus, Serratia marcescens is the correct answer.
Step 4: Final Answer:
Serratia marcescens produces bright pink or red pigment.
Hence, the correct option is (B). \bigskip