TE buffer is widely used in molecular biology for the storage and dilution of DNA and RNA, as its components help maintain the stability of nucleic acids. It is commonly employed in procedures such as gel electrophoresis, where it serves as a running buffer to ensure optimal separation of DNA fragments. TE buffer is also used in DNA extraction and purification processes, as it prevents degradation by chelating metal ions that can catalyze enzymatic reactions. Additionally, it is utilized in PCR and other enzymatic reactions to maintain the integrity of DNA samples. Its mild buffering capacity and compatibility with various biological applications make it a staple in laboratories working with nucleic acids.