Transfer of genetic material with the help of a virus is called

Options

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

Answer

To solve the question "Transfer of genetic material with the help of a virus is called", we can follow these steps:

### Step 1: Identify the Options
The options provided are:
1. Transference
2. Transformation
3. Transduction
4. Transcription

### Step 2: Understand Each Term
- **Transference**: This term generally refers to the act of transferring something but is not a specific biological process related to genetic material transfer. Therefore, it is not the correct answer.

- **Transformation**: This is a process where a bacterial cell takes up genetic material from its environment. It does not involve a virus, so this option is also incorrect.

- **Transduction**: This process involves the transfer of genetic material between bacteria through the action of a virus, specifically a bacteriophage. In transduction, the bacteriophage infects a bacterial cell, incorporates some of the bacterial DNA, and then transfers that DNA to another bacterial cell upon infection. This is the correct answer.

- **Transcription**: This is the process of synthesizing RNA from a DNA template. It does not involve the transfer of genetic material between cells, so it is not the correct answer.

### Step 3: Conclusion
Based on the definitions and explanations of each term, the correct answer to the question is **Transduction**.

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