The number of bands in this product is 10. The Low ladder is ideal for determining the size of double-stranded DNA from 25 to 700 base pairs. The ladder consists of 10 linear double-stranded fragments .The 100bp and 300bp fragment are present at increased intensity to allow easy identification. All fragments are precisely quantified and mixed during the production. For 5 ul loading, all fragments except 100bp and 200bp are 40ng. The 100bp and 200bp fragment is 100ng. This ladder is pre-mixed with loading dye and is ready to use.