Transfer of genetic information through transduction involves

Options

A. Conjugation
B. Bacteriophage released from donor cell
C. Another bacterium
D. Physical contact between donor and recipient strains.

Answer

### Step-by-Step Solution:

1. **Understanding Transduction**: Transduction is a method of genetic transfer in bacteria where genetic material is transferred from one bacterium to another through a virus known as a bacteriophage.

2. **Analyzing the Options**:
- **Option 1: Conjugation**: This involves direct physical contact between two bacterial cells to transfer genetic material. This is not transduction.
- **Option 2: Bacteriophage released from donor cell**: Bacteriophages are viruses that infect bacteria. They can carry genetic material from one bacterium to another, which is the essence of transduction.
- **Option 3: Another bacterium**: This does not specify a mechanism of transfer and is not relevant to transduction.
- **Option 4: Physical contact between donor and recipient strains**: This describes conjugation, not transduction.

3. **Identifying the Correct Answer**: The only option that correctly describes the process of transduction is **Option 2: Bacteriophage released from donor cell**.

### Final Answer:
The transfer of genetic information through transduction involves **bacteriophage released from donor cell**.

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