Polyacrylamide gel electrophoresis provides very high resolution of DNA molecules 10–3,000 bp long. Under the appropriate conditions, DNA molecules differing in size by only a single base pair can be resolved (learn more: Nucleic acid electrophoresis education). We offer convenient reagents for polyacrylamide gel electrophoresis, including hassle-free precast Invitrogen Novex polyacrylamide gels, DNA ladders, and UltraPure reagents for pouring your own gels.