In DNA replication, the prime is :-

Options

A. A small deoxyribonucleotide polymer
B. A small ribonucleotide polymer
C. Helix destibilizing protein
D. Enzyme taking part in joining nucleotides of new strand

Answer

**Step-by-Step Solution:**

1. **Understanding DNA Replication**: DNA replication is the process by which a cell makes an identical copy of its DNA. This is essential for cell division and occurs in all living organisms.

2. **Role of the Primer**: During DNA replication, a primer is necessary to initiate the synthesis of the new DNA strand. The primer provides a starting point for DNA polymerase, the enzyme responsible for adding nucleotides to form the new DNA strand.

3. **Composition of the Primer**: The primer is a short segment of nucleotides. In the context of DNA replication, this primer is specifically made of RNA, which is why it is referred to as an RNA primer.

4. **Identifying the Correct Option**: Given the options:
- A) Small deoxyribonucleotide polymer
- B) Small ribonucleotide polymer
- C) Helix destabilizing protein
- D) Enzyme that takes part in the synthesis of the new strand

Since we established that the primer is made of RNA, the correct choice is **B) Small ribonucleotide polymer**.

5. **Conclusion**: Therefore, in DNA replication, the primer is a small ribonucleotide polymer.

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