Question

A series of steps are involved in bacteriophage infection. In your opinion which one of the following is the first step in bacteriophage infection of dairy starters.

• A. Synthesis of phage particles
• B. Injection of phage DNA
• C. Attachment of phage to bacterial cell
• D. Assembling of phage particles

Hint:

Phage infection steps:
Attachment \(\rightarrow\) Injection \(\rightarrow\) Synthesis \(\rightarrow\) Assembly \(\rightarrow\) Release.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Bacteriophage infection involves specific steps.
The first step is crucial for infection.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the steps of bacteriophage infection.
Step 3: Detailed Explanation:
The first step in bacteriophage infection is attachment.
The phage attaches to specific receptors on the bacterial cell.
This is followed by injection of phage DNA.
Synthesis and assembling of phage particles occur later.
Thus, attachment is the first step.
Step 4: Final Answer:
The first step is attachment of phage to bacterial cell.
Hence, the correct option is (C). \bigskip