nucleic acid purity

Nucleic acid purity refers to the quality and integrity of DNA or RNA samples, indicating the absence of contaminants such as proteins, phenol, or other organic compounds. Assessing nucleic acid purity is crucial for accurate downstream applications like PCR, sequencing, and molecular cloning. Common methods to evaluate purity include spectrophotometric measurements (e.g., A260/A280 ratio) and gel electrophoresis. High-purity nucleic acids ensure reliable experimental results and reproducibility in research and diagnostic workflows.