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142 results for Molecular Weight Markers

You searched for: Molecular Weight Markers

Molecular Weight Markers

Molecular-weight size markers are a set of standards used to identify the approximate size of a molecule run on a gel during electrophoresis, using the principle that molecular weight is inversely proportional to migration rate through a gel matrix. The molecular weight markers offered are ideal for verification of PCR products, for size analysis of digested DNA, and easy band identification of a number of different fragments. Certain models are available pre-mixed with loading dye.

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PhiX174, RF DNA, 50 µg, Promega

PhiX174, RF DNA, 50 µg, Promega

Supplier: Promega Corporation

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.

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1 kb DNA Ladder, 500 µl, Promega

1 kb DNA Ladder, 500 µl, Promega

Supplier: Promega Corporation

13 blunt-end fragments from 250bp to 10,000bp.

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100 bp DNA Step Ladder, 100 µg, Promega

100 bp DNA Step Ladder, 100 µg, Promega

Supplier: Promega Corporation

Forty blunt-ended DNA fragments ranging from 100bp to 4,000bp in 100bp increments.

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DNA Step Ladder 10 bp, 32.5 µg

DNA Step Ladder 10 bp, 32.5 µg

Supplier: Promega Corporation

Ten blunt-ended DNA fragments ranging from 10bp to 100bp in exactly 10bp increments

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200 bp DNA Step Ladder, 100 µg, Promega

200 bp DNA Step Ladder, 100 µg, Promega

Supplier: Promega Corporation

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.

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Lambda DNA/HindIII Markers, 100 µg, Promega

Lambda DNA/HindIII Markers, 100 µg, Promega

Supplier: Promega Corporation

Generated by digesting lambda DNA to completion with HindIII, resulting in DNA fragments of 125-23,130bp.

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1 kb DNA Step Ladder, 90 µg, Promega

1 kb DNA Step Ladder, 90 µg, Promega

Supplier: Promega Corporation

Ten blunt-ended DNA fragments ranging from 1kb to 10kb in 1kb increments.

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RNA Markers, 50 µl, Promega

RNA Markers, 50 µl, Promega

Supplier: Promega Corporation

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.

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Quick-Load Purple Low Molecular Weight DNA Ladder, New England Biolabs

Quick-Load Purple Low Molecular Weight DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

Quick-Load Purple Low Molecular Weight DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing one tracking dye.

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Lambda DNA/EcoRI Markers, 100 µg, Promega

Lambda DNA/EcoRI Markers, 100 µg, Promega

Supplier: Promega Corporation

Generated by digesting lambda DNA to completion with EcoRI, resulting in six DNA fragments of 3,530-21,226bp.

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pGEM DNA Markers, 50 µg, Promega

pGEM DNA Markers, 50 µg, Promega

Supplier: Promega Corporation

Fifteen phenol-extracted, ethanol-precipitated DNA fragments ranging in size from 36bp to 2,645bp. These markers are generated from separate digests of pGEM(R)-3 Vector DNA with HinfI, RsaI and AvaII and then combined.

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QUICK-LOAD® DNA Ladder, 2-log, New England Biolabs

QUICK-LOAD® DNA Ladder, 2-log, New England Biolabs

Supplier: New England Biolabs (NEB)

Quick-Load® 2-Log DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing bromophenol blue as a tracking dye

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Fast DNA Ladder, New England Biolabs

Fast DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

The Fast DNA ladder is a pre-mixed, ready-to-load molecular weight marker containing xylene cyanol FF dye as a tracking dye

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Lambda DNA/EcoRI + HindIII Markers, 100 µg, Promega

Lambda DNA/EcoRI + HindIII Markers, 100 µg, Promega

Supplier: Promega Corporation

Created by digesting lambda DNA to completion with EcoRI and HindIII to generate 13 fragments of 125-21,226bp.

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100 bp DNA Ladder, 250 µl, Promega

100 bp DNA Ladder, 250 µl, Promega

Supplier: Promega Corporation

11 fragments from 100bp to 1,000bp in 100bp increments and includes an additional 1.5kb band

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QUICK-LOAD® DNA Ladder, 100 bp, New England Biolabs

QUICK-LOAD® DNA Ladder, 100 bp, New England Biolabs

Supplier: New England Biolabs (NEB)

Quick-Load® 100 bp DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing bromophenol blue as a tracking dye

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DNAmark™ DNA Plus Ladders, G-Biosciences

DNAmark™ DNA Plus Ladders, G-Biosciences

Supplier: G-Biosciences

DNAmark™ 1kb Plus contains 15 DNA bands ranging from 100bp to 10Kb

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QUICK-LOAD® DNA Ladder, 1 kb, New England Biolabs

QUICK-LOAD® DNA Ladder, 1 kb, New England Biolabs

Supplier: New England Biolabs (NEB)

Quick-Load® 1 kb DNA Ladder is a premixed, ready-to-load molecular weight marker containing bromophenol blue as a tracking dye

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QUICK-LOAD® DNA Ladder, 1 kb Extend, New England Biolabs

QUICK-LOAD® DNA Ladder, 1 kb Extend, New England Biolabs

Supplier: New England Biolabs (NEB)

The Quick-Load 1 kb Extend DNA ladder is a pre-mixed, ready-to-load molecular weight DNA marker containing bromophenol blue dye as a tracking dye

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PCR Markers, Promega

PCR Markers, Promega

Supplier: Promega Corporation

PCR Markers: 6 bands of 50, 150, 300, 500, 750 and 1,000bp.

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ProSieve™ Protein Markers

ProSieve™ Protein Markers

Supplier: Lonza

The ProSieve® QuadColor® Protein marker is a mixture of 12 recombinant, highly purified proteins with molecular weights of 4, 6, 10, 15, 25, 40, 55, 70, 100, 140, 170, 250, and 300 kDa.

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PCR Marker, New England Biolabs

PCR Marker, New England Biolabs

Supplier: New England Biolabs (NEB)

The PCR Marker consists of a proprietary plasmid that is digested to completion with appropriate restriction enzymes to yield 5 double-stranded DNA bands suitable for use as molecular weight standards for agarose and acrylamide gel electrophoresis

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Quick-Load Purple 50 bp DNA Ladder, New England Biolabs

Quick-Load Purple 50 bp DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

Quick-load Purple 50 bp DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing one tracking dye.

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TRIDYE™ DNA Ladder, 1 kb Plus, New England Biolabs

TRIDYE™ DNA Ladder, 1 kb Plus, New England Biolabs

Supplier: New England Biolabs (NEB)

TriDye™ 2-Log DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing 3 dyes which serve as visual aids to monitor the progress of migration during agarose gel electrophoresis

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TRIDYE™ DNA Ladder, 100 bp , New England Biolabs

TRIDYE™ DNA Ladder, 100 bp , New England Biolabs

Supplier: New England Biolabs (NEB)

TriDye™ 100 bp DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing 3 dyes which serve as visual aids to monitor the progress of migration during agarose gel electrophoresis

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1 kb Plus DNA Ladder for Safe Stains, New England Biolabs

1 kb Plus DNA Ladder for Safe Stains, New England Biolabs

Supplier: New England Biolabs (NEB)

The 1 kb Plus DNA ladder for safe stains is a pre-mixed, ready-to-load molecular weight marker containing one tracking dye. It has been optimized for use on GelRed, GelGreen and SYBR Safe precast agarose gels.

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TriDye Ultra Low Range DNA Ladder, New England Biolabs

TriDye Ultra Low Range DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)

TriDye Ultra low range DNA ladder is a pre-mixed, ready-to-load molecular weight marker containing three tracking dyes which serve as visual aids to monitor the progress of migration during native agarose and polyacrylamide gel electrophoresis.

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TRIDYE™ DNA Ladder, 1 kb, New England Biolabs

TRIDYE™ DNA Ladder, 1 kb, New England Biolabs

Supplier: New England Biolabs (NEB)

TriDye™ 1 kb DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing 3 dyes which serve as visual aids to monitor the progress of migration during agarose gel electrophoresis

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Promega DNA

Promega DNA

Supplier: Promega Corporation

Promega DNA
These high quality DNA Markers were created by digesting specified DNA to completion with one or more restriction enzymes, complete with heat inactivation. The recommended loading for each is 1μl per lane. Used for DNA electrophoresis labs. Note: Perishable. Store frozen. Shipped next day air on ice. A ship date is required.

Lambda DNA
Lambda DNA c1857 Sam7is isolated from infected e.coli strain W3350 and typically used as a molecular weight marker during DNA electrophoresis. Will yield typical patterns when cut with restriction enzymes. Uncut size is 48.5 kb. Note: Storage at -20°C required, ship date required. Available to U.S. customers only.

Lambda DNA/ HindIII Digest
This high quality DNA marker is created by digesting Lambda DNA to completion with Hind III restriction enzyme, complete with heat inactivation. Great for use as a moleduclar weight marker during DNAelectrophoresis, it is supplied with 1ml Blue/Orange 6X loading dye. Recommended loading is 1 μl per well. Note: Storage at -20°C required, ship date required. Available to U.S. customer only.

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DNA Ladder, 1 kb, New England Biolabs

DNA Ladder, 1 kb, New England Biolabs

Supplier: New England Biolabs (NEB)

A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 10 bands suitable for use as molecular weight standards for agarose gel electrophoresis

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