Question:
Chemical nature of primers of DNA/RNA
Chemical nature of primers of DNA/RNA
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Primers are always nucleotides (DNA/RNA), not proteins or simple sugars. Oligonucleotides are typically 10–20 bases long in PCR and replication.
Updated On: Mar 6, 2026
- Oligosaccharides
- Oligonucleotides
- Polypeptides
- Disaccharides
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The Correct Option is B
Solution and Explanation
Primers for DNA replication and transcription are short nucleic acid sequences (oligonucleotides) that provide a free 3′-OH group for DNA polymerase or RNA polymerase to extend. Polypeptides or sugars cannot act as primers.
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