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Life Science > Molecular Biology > PCR/Amplification > DNA/RNA Molecular Weight Markers
PCR/Amplification

DNA/RNA Molecular Weight Markers

Accurately determine the size of your PCR fragment with Sigma's Molecular weight markers. Our line of DNA and RNA molecular weight markers allow you to select the right marker for your gel.

  • Flexibility to Meet Your Needs – DNA or RNA markers available in a wide-range of sizes (<20 bp up to 10,000 bp).
  • Lot Specific Validation – Fully validated for size determination of nucleic acid.

PCR Low DNA Ladders
DNA Ladders
DNA Markers
Ribosomal RNA Markers
RNA Markers


PCR Low DNA Ladders

Product Name Product No.
PCR 100 bp Low Ladder P1473
PCR 20 bp Low Ladder P1598
PCR Low Ladder Set D7808

DNA Ladders

Product Name Product No.
123 bp Ladder D5042
1 kb Ladder D0428
Step Ladder, 50 bp S7025

DNA Markers

Product Name Product No.
pUC18 DNA Dpn I digest D6683
DirectLoad™ Wide Range DNA Marker, 50 - 10,000 bp D7058

Ribosomal RNA Markers

Product Name Product No.
5S Ribosomal RNA from Escherichia coli R8385
18S + 28S Ribosomal RNA from calf liver R0889

RNA Markers

Product Name Product No.
Transcript RNA Markers 0.1-1 kb R6895
Transcript RNA Markers 0.2-10 kb R7020
Transcript RNA Markers 0.28-6.6 kb R7644
RNA Marker template set R4142


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