Which of the following enzyme is used in DNA multiplication :-

Options

A. RNA polymerase
B. DNA endonuclease
C. Exonuclease
D. DNA Polymerase

Answer

To determine which enzyme is used in DNA multiplication, let's analyze the options provided:

1. **RNA Polymerase**: This enzyme is responsible for synthesizing RNA from a DNA template during the process of transcription. It does not play a role in DNA multiplication. Therefore, this option is incorrect.

2. **DNA Endonuclease**: Endonucleases are enzymes that cut DNA at specific internal sites. They are involved in processes such as DNA repair and recombination but do not directly contribute to DNA multiplication. Thus, this option is also incorrect.

3. **Exonuclease**: Exonucleases are enzymes that remove nucleotides from the ends of DNA molecules. While they are important for various DNA processing activities, they do not facilitate the actual replication or multiplication of DNA. Hence, this option is incorrect as well.

4. **DNA Polymerase**: This enzyme is crucial for DNA replication. DNA polymerases synthesize new DNA strands by adding nucleotides to a growing chain, using an existing DNA strand as a template. Therefore, DNA polymerase is the enzyme that is specifically used in DNA multiplication, making this option correct.

**Final Answer**: The enzyme used in DNA multiplication is **DNA Polymerase**.

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