DNA Electrophoresis Size Standards

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Bio-Rad's high-quality EZ Load™ molecular rulers are essential tools for every classroom molecular biologist. These DNA size standards can be used as positive controls for electrophoresis and for determining the sizes of unknown DNA fragments.

EZ Load molecular rulers cover all your DNA fragment–sizing needs, from oligonucleotides to PCR products to plasmids. The standards are prediluted to a concentration appropriate for most electrophoresis runs and are available in five size ranges. To ensure easy and correct measurement of your sample sizes, most of these ladders include a visually distinct reference band.

EZ Load 20 bp Molecular Ruler

170-8351EDU
Pkg of 1, ready-to-load DNA electrophoresis size standard, 20–1,000 base pairs, 50 bands; education use only

List Price:   $123.00
EDU Price:   $98.40   What is this?
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EZ Load 100 bp Molecular Ruler

170-8352EDU
Pkg of 1, ready-to-load DNA electrophoresis size standard, 100–1,000 base pairs, 10 bands; education use only

List Price:   $123.00
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EZ Load 100 bp PCR Molecular Ruler

170-8353EDU
Pkg of 1, ready-to-load DNA electrophoresis size standard, 100–3,000 base pairs, 30 bands; education use only

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EZ Load 500 bp Molecular Ruler

170-8354EDU
Pkg of 1, ready-to-load DNA electrophoresis size standard, 500–8,000 base pairs, 16 bands; education use only

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EZ Load 1 kb Molecular Ruler

170-8355EDU
Pkg of 1, ready-to-load DNA electrophoresis size standard, 1,000–15,000 base pairs, 15 bands; education use only

List Price:   $100.00
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EZ Load Precision Molecular Mass Ruler

170-8356EDU
Pkg of 1, ready-to-load DNA electrophoresis size standard for quantitation in gels, 100–1,000 base pairs, 5 bands; education use only

List Price:   $123.00
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Number Description Options
4006137 Instruction Manual, EZ Load Molecular Rulers Click to download
2121 User Guide to Nucleic Acid Standards Bulletin, Rev D Click to download
2414 The Little Book of Standards, Rev D Click to download [ Add to Cart (Free) ]