bayoubiolabs Biochemicals Catalog The lowest cost per loading DNA ladders in the world See the ladder summary chart below. DNA Ladders for conventional electrophoresis 20 bp DNA ladder 50 bp DNA ladder 100 bp DNA ladder 200 bp DNA ladder 500 bp DNA ladder 1 kilobase DNA ladder Supercoiled Plasmid ladder Vectors pUC and M13 DNA Ready to Ligate Vectors Ready to Ligate pUC18 and M13mp18 Molecular Biology Kits Supercoil-It™ Plasmid Purification Kit Exonuclease-It™ Plasmid Purification Kit Repair-It™ DNA Repair Kit Recombinant Enzymes Recombinant Enzymes