Nucleic Acid Molecular Weight Markers
Promega ΦX174, RF DNA
phiX174 replicative form (RF) is a double-stranded circular DNA molecule of 5,386 bases. Used in assays of restriction enzymes for the presence of nickase activity.
Promega RNA Markers
RNA Markers consist of a ladder of 9 RNA transcripts synthesized in vitro from specific templates. Sizes: 281, 623, 955, 1,383, 1,908, 2,604, 3,638, 4,981 and 6,583 bases.
Promega 50bp DNA Step Ladder Molecular Weight Marker for Electrophoresis
Sixteen DNA fragments ranging from 50bp to 800bp in 50bp increments plus an 1,800bp backbone fragment.
Promega 1kb DNA Step Ladder Molecular Weight Marker for Electrophoresis
Ten blunt-ended DNA fragments ranging from 1kb to 10kb in 1kb increments.
Promega Lambda DNA/EcoRI + HindIII Conventional DNA Digest Marker
Created by digesting lambda DNA to completion with EcoRI and HindIII to generate 13 fragments of 125-21,226bp.
Promega™-Markers™ Lambda Ladder
50-1,000kb; 20 bands. Concatamer of lambda phage DNA. Embedded in dye-colored, 1% agarose string molds in 50mM EDTA at 0.5ug/5mm.
Promega 100bp DNA Ladder Molecular Weight Marker
11 fragments from 100bp to 1,000bp in 100bp increments and includes an additional 1.5kb band
Promega Lambda DNA/HindIII Conventional DNA Digest Marker
Generated by digesting lambda DNA to completion with HindIII, resulting in DNA fragments of 125-23,130bp.
Promega 25bp DNA Step Ladder Molecular Weight Marker for Electrophoresis
Twelve DNA fragments ranging from 25bp to 300bp in 25bp increments includes a visible 1,800bp backbone fragment.
Promega 200bp DNA Step Ladder Molecular Weight Marker for Electrophoresis
Thirty-three blunt-ended DNA fragments ranging from 200bp to 6,600bp in 200bp increments. The 1,000bp band appears more intense than all other bands.
Promega φX174 DNA/HaeIII Conventional DNA Digest Marker
Eleven phenol-extracted, ethanol-precipitated DNA fragments ranging in size from 72bp to 1,353bp.
Innovating Science™ Agarose Dye Marker Set
Gets student accustomed to the electrophoresis process without using expensive DNA.