multi-panel gel image of DNA ladders  

Thermo Scientific™ GeneRuler and O'GeneRuler DNA ladders are mixtures of chromatography-purified individual DNA fragments. The GeneRuler line includes the most popular ladders such as the 100 bp and 1 kb DNA Ladder.

GeneRuler DNA ladders are available in two formats: conventional (provided in TE buffer) and a ready-to-use format (premixed with 6X DNA Loading Dye which contains bromophenol blue and xylene cyanol FF). O'GeneRuler DNA ladders are another ready-to-use version of GeneRuler™ DNA ladders that are premixed with 6X Orange DNA Loading Dye.

GeneRuler 1 kb, 100 bp, and 50 bp DNA ladders

GeneRuler DNA Ladders are recommended for sizing and approximate quantification of a wide range of double-stranded DNA on agarose gels. Each ladder is a mixture of chromatography-purified individual DNA fragments. Available in ready-to-use format.

Features:

  • Universal ladders for DNA sizing and quantification—cover broad range of DNA molecular weights and provide DNA amount per band
  • Sharp bands, bright reference bands
  • Supplied with loading dye for sample DNA
  • Ready-to-use ladders are stable for 6 months at room temperature 

gel images of GeneRuler™ 1 kb, 100 bp, and 50 bp DNA ladders

GeneRuler™ 1 kb, 100 bp, and 50 bp DNA ladders selection guide

Range, bp DNA Ladder Quantity Catalog #
50–1,000 GeneRuler™ 50 bp DNA Ladder 50 µg SM0371
5 x 50 µg SM0372
GeneRuler™ 50 bp DNA Ladder, ready-to-use 50 µg SM0373
100–1,000 GeneRuler™ 100 bp DNA Ladder 50 µg SM0241
5 x 50 µg SM0242
GeneRuler™ 100 bp DNA Ladder, ready-to-use 50 µg SM0243
5 x 50 µg SM0244
100–3,000 GeneRuler™ 100 bp Plus DNA Ladder 50 µg SM0321
5 x 50 µg SM0322
GeneRuler™ 100 bp Plus DNA Ladder, ready-to-use 50 µg SM0323
5 x 50 µg SM0324
250–10,000 GeneRuler™ 1 kb DNA Ladder 5 x 50 µg SM0311
25 x 50 µg SM0312
GeneRuler™ 1 kb DNA Ladder, ready-to-use 50 µg SM0314
5 x 50 µg SM0313
75–20,000 GeneRuler™ 1 kb Plus DNA Ladder 5 x 50 µg SM1331
25 x 50 µg SM1332
GeneRuler™ 1 kb Plus DNA Ladder, ready-to-use 5 x 50 µg SM1333
50 µg SM1334
100–10,000 GeneRuler™ DNA Ladder Mix 5 x 50 µg SM0331
25 x 50 µg SM0332
GeneRuler™ DNA Ladder Mix, ready-to-use 50 µg SM0334
5 x 50 µg SM0333

GeneRuler Low and High Range DNA Ladders

GeneRuler DNA Low Range and High Range Ladders are best for sizing and approximate quantification of double-stranded DNA at low and high DNA size ranges. Each ladder consists of a mixture of chromatography-purified individual DNA fragments. Available in ready-to-use format.

Features:

  • Sizing and quantification at specific DNA molecular weight ranges
  • Sharp bands, bright reference bands
  • Supplied with loading dye for sample DNA
  • Ready–to-use ladders are stable for 6 months at room temperature

gel images of GeneRuler™ Low and High Range DNA Ladders

GeneRuler™ low and high range DNA ladders selection guide

Range, bp DNA Ladder Quantity Catalog #
10–300 GeneRuler™ Ultra Low Range DNA Ladder 50 µg SM1211
5 x 50 µg SM1212
GeneRuler™ Ultra Low Range DNA Ladder, ready-to-use 50 µg SM1213
25–700 GeneRuler™ Low Range DNA Ladder 50 µg SM1191
5 x 50 µg SM1192
GeneRuler™ Low Range DNA Ladder, ready-to-use 50 µg SM1193
10,171–48,502 GeneRuler™ High Range DNA Ladder 50 µg SM1351
5 x 50 µg SM1352
GeneRuler™ High Range DNA Ladder, ready-to-use 50 µg SM1353

O’GeneRuler DNA Ladders

O’GeneRuler DNA ladders are another ready-to-use version of GeneRuler DNA ladders. O’GeneRuler DNA ladders are premixed with 6X Orange DNA Loading Dye, which contains xylene cyanol FF and orange G. In a 1% agarose gel orange G dye migrates at 50 bp. Therefore O’GeneRuler DNA ladders are ideal to use  when visualization of small DNA fragments is important.

O'GeneRuler™ DNA ladder selection guide