Enzyme DNA dependent RNA polymerase is used in

Options

A. Ribosome synthesis
B. mRNA symthesis
C. DNA synthesis
D. Carbohydrate synthesis

Answer

To solve the question regarding the function of the enzyme DNA dependent RNA polymerase, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Enzyme**:
- DNA dependent RNA polymerase is an enzyme that synthesizes RNA from a DNA template. This process is crucial for the expression of genes.

2. **Identifying the Process**:
- The process carried out by DNA dependent RNA polymerase is known as transcription. During transcription, the enzyme reads the DNA sequence and synthesizes a complementary RNA strand.

3. **Differentiating Other Options**:
- **Ribosome Synthesis**: Ribosomes are made up of ribosomal RNA (rRNA) and proteins, and the enzyme involved in their synthesis is peptidyl transferase, not RNA polymerase.
- **DNA Synthesis**: DNA synthesis is carried out by DNA polymerase, not RNA polymerase.
- **Carbohydrate Synthesis**: This process involves different enzymes such as protein phosphatase and protein kinase, which are not related to RNA synthesis.

4. **Conclusion**:
- Based on the understanding that DNA dependent RNA polymerase is specifically involved in the synthesis of mRNA, the correct answer to the question is option number 2: mRNA synthesis.

### Final Answer:
The enzyme DNA dependent RNA polymerase is used in **mRNA synthesis**.

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