cDNA is synthesized from mRNA by the following enzyme

Options

A. DNA dependent DNA polymerase
B. RNA polymerase
C. Reverse transcriptase
D. DNA dependent RNA polymerase

Answer

**Step-by-Step Solution:**

1. **Understanding cDNA**: cDNA stands for complementary DNA. It is synthesized from an mRNA template.

2. **Identifying the Process**: The process of synthesizing cDNA from mRNA is known as reverse transcription.

3. **Enzyme Involved**: The enzyme responsible for catalyzing the reverse transcription process is called reverse transcriptase.

4. **Function of Reverse Transcriptase**: Reverse transcriptase synthesizes cDNA by using the mRNA as a template to create a complementary DNA strand.

5. **Context of Use**: This enzyme is primarily found in retroviruses, which convert their single-stranded RNA into double-stranded DNA through this process.

6. **Conclusion**: Therefore, the correct answer to the question is that cDNA is synthesized from mRNA by the enzyme reverse transcriptase.

**Final Answer**: cDNA is synthesized from mRNA by the enzyme reverse transcriptase.

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