For DNA/RNA fragments 5-500bp. Ideal for primer size. DNAse and RNase free at 3% concentration, Agarose Ultra High Resolution (UHR) presents a resolution of DNA fragments similar to gels made with polyacrylamide at concentrations of 8%. Gels with Agarose UHR are easier to prepare and are absolutely free of neurotoxic dangers inherent to polyacrylamide. While Agarose UHR can be dissolved by careful adherence to microwaving procedures, Agarose UHR gels are best prepared by autoclaving.