Used for electrophoretic separation of DNA and RNA fragments in molecular biology applications. The 3% concentration is ideal for resolving small DNA fragments, typically in the range of 100–1000 base pairs. Pre-cast format saves time and ensures consistent gel quality, eliminating the need for manual gel preparation. Suitable for use with TAE buffer in horizontal gel electrophoresis systems. The 15-well comb allows multiple samples to be run simultaneously, making it efficient for high-throughput analysis. Commonly used in PCR product verification, restriction digestion analysis, and nucleic acid size determination. Requires no staining if used with sensitive nucleic acid stains and imaging systems.