Perfect™ 100 bp DNA Ladder is DNA ladder with 100 bp increments for sizing small-to-medium DNA fragments. Ideal for sizing linear double-stranded DNA fragments from 100 to 2500 bp. Contains 13 bands with fragments of the following sizes: 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000, 1500, 2000, 2500 bp. For easy reference, bands at 500 and 1000 bp are brighter than other bands in the ladder. Can be 5′-end labeled with radioisotopes and T4 Polynucleotide Kinase for visualization by autoradiography after a dephosphorylation step. Supplied in ready-to-load buffers containing tracking dyes. No preparation before loading required.