The process in which viruses are involved in sexual reproduction of bacteria is called
Or
The transfer of genetic material from one bacterial cell to another through a vector is

Options

A. Transduction
B. Transcription
C. Transformation
D. Translation.

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about a process involving viruses in the sexual reproduction of bacteria, specifically focusing on the transfer of genetic material between bacterial cells.

2. **Identifying Key Terms**: The key terms in the question are "viruses," "sexual reproduction," "bacteria," and "transfer of genetic material."

3. **Exploring the Options**: The options provided are:
- Transduction
- Transcription
- Transformation
- Translation

4. **Analyzing Each Option**:
- **Transduction**: This is the process where bacteriophages (viruses that infect bacteria) transfer genetic material from one bacterium to another. It involves a virus acting as a vector.
- **Transcription**: This is the process of synthesizing RNA from a DNA template, not related to the transfer of genetic material between bacteria.
- **Transformation**: This refers to the uptake of free DNA from the environment by a bacterial cell, which is also not virus-mediated.
- **Translation**: This is the process of synthesizing proteins from mRNA, unrelated to genetic material transfer.

5. **Conclusion**: Based on the analysis, the correct answer is **Transduction**, as it specifically involves viruses (bacteriophages) transferring genetic material between bacterial cells.

**Final Answer**: The process in which viruses are involved in sexual reproduction of bacteria is called **Transduction**.

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