Figure 1. IDT oligo length standards. The 10/60 Ladder (left) contains marker oligos of 10, 15, 20, 25, 30, 40, 50, and 60 bases. The 20/100 Ladder (right) contains marker oligos of 20, 30, 40, 50, 60, 70, 80, 90, and 100 bases. Note: 10 nt oligos bind dyes poorly and may appear more faint than other bands.