Which of the following acts substrate as well as provide energy for DNA polymerisation

Options

A. Ribonuclesodie
B. Deoxyribonucleoside
C. Ribonucleotide
D. Deoxyribonucleoside triphosphate

Answer

### Step-by-Step Solution:

1. **Understanding DNA Polymerization**:
- DNA polymerization, also known as DNA replication, is the process through which new DNA molecules are synthesized from existing DNA templates. This is crucial for cell division and the transmission of genetic information.

2. **Role of DNA Polymerase**:
- The enzyme responsible for DNA polymerization is called DNA polymerase. This enzyme catalyzes the addition of nucleotides to the growing DNA strand.

3. **Identifying the Substrate**:
- The substrate that DNA polymerase utilizes during DNA replication is nucleoside triphosphate. Specifically, it uses deoxyribonucleoside triphosphates (dNTPs) which are the building blocks of DNA.

4. **Energy Source**:
- Deoxyribonucleoside triphosphates (dNTPs) not only serve as substrates for the synthesis of DNA but also provide the necessary energy for the polymerization process. The high-energy phosphate bonds in dNTPs are broken during the addition of nucleotides to the growing DNA strand, releasing energy that drives the reaction.

5. **Conclusion**:
- Therefore, the molecule that acts as both a substrate and provides energy for DNA polymerization is deoxyribonucleoside triphosphate (dNTP).

### Final Answer:
The correct answer is **deoxyribonucleoside triphosphate (dNTP)**.

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