What are the characteristics of 100 bp DNA ladders?

100 bp DNA ladders serve as a DNA size reference. They are made up of about 11 highly purified DNA fragments. They are used for sizing and quantifying double-stranded DNA within the size range of 100 base pairs (bp) to 1500 bp.

100 bp DNA ladders form clearly visible, distinct bands, with each band containing an exact amount of DNA, enabling the identification of other DNA fragments within the specified range.