Primers are small chemcially synthezised ?

Options

A. Oligosaccharides
B. polypeptides
C. Oligonculeotides
D. Polypeptides

Answer

**Step-by-Step Solution:**

1. **Understanding Primers**: Primers are short sequences of nucleotides that are essential in the process of DNA replication. They provide a starting point for DNA synthesis.

2. **Chemical Nature of Primers**: Primers are chemically synthesized, meaning they are artificially created in a laboratory setting. They are not naturally occurring but are designed to have specific sequences.

3. **Composition of Primers**: The composition of primers consists of nucleotides, which are the building blocks of DNA. Each nucleotide is made up of a sugar, a phosphate group, and a nitrogenous base.

4. **Identifying the Options**: In the question, we have several options to choose from:
- Oligosaccharides (which are sugars)
- Polypeptides (which are proteins made of amino acids)
- Oligonucleotides (which are short sequences of nucleotides)

5. **Selecting the Correct Answer**: Since primers are made up of nucleotides, the correct answer is "oligonucleotides." This term specifically refers to short chains of nucleotides, which aligns perfectly with the definition of primers.

6. **Conclusion**: Therefore, the correct statement is that primers are small chemically synthesized oligonucleotides.

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