In Rous Sarcoma Virus (RSV), flow of information is

Options

A. (a) central dogma
B. (b) RNA `rarr` DNA `rarr` RNA `rarr` protein
C. (c) both (a) and (b) are correct.
D. (d) both (a) and (b) are wrong

Answer

### Step-by-Step Solution:

1. **Identify the Virus**: The question refers to the Rous Sarcoma Virus (RSV), which is a type of retrovirus.

2. **Understand the Genetic Material**: Retroviruses, including RSV, have RNA as their genetic material. This is a key characteristic that distinguishes them from many other viruses.

3. **Recognize the Role of Reverse Transcriptase**: Retroviruses possess an enzyme called reverse transcriptase. This enzyme allows the virus to convert its RNA into DNA, which is an essential step in its life cycle.

4. **Apply the Central Dogma of Molecular Biology**: The central dogma states that genetic information flows from DNA to RNA to proteins. However, retroviruses like RSV deviate from this norm.

5. **Outline the Flow of Information in RSV**:
- **Step 1**: The RNA of the virus is reverse transcribed into DNA using reverse transcriptase.
- **Step 2**: This DNA can then be integrated into the host's genome.
- **Step 3**: The integrated DNA is transcribed back into RNA.
- **Step 4**: Finally, the RNA is translated into proteins.

6. **Determine the Correct Flow of Information**: Based on the steps outlined, the flow of information in RSV is:
- RNA → DNA → RNA → Protein

7. **Select the Correct Option**: Given the options, the correct answer is option B: RNA to DNA to RNA to Protein.