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You Searched For: 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.

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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Product Image-101227-142

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

Catalog Number: (101227-142)
Supplier: New England Biolabs (NEB)
Description: 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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Product Image-101227-144

TRIDYE™ DNA Ladder, 100 bp , New England Biolabs

Catalog Number: (101227-144)
Supplier: New England Biolabs (NEB)
Description: 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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Product Image-101228-472

pBR322 DNA-Msp I Digest, New England Biolabs

Catalog Number: (101228-472)
Supplier: New England Biolabs (NEB)
Description: The MspI digest of pBR322 DNA yields 26 fragments

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Product Image-101228-466

pBR322 DNA-BstN I Digest, New England Biolabs

Catalog Number: (101228-466)
Supplier: New England Biolabs (NEB)
Description: The BstNI Digest of pBR322 DNA yields 6 fragments suitable for use as molecular weight standards for agarose gel electrophoresis

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Product Image-101228-498

Low Molecular Weight DNA Ladder, New England Biolabs

Supplier: New England Biolabs (NEB)
Description: A proprietary plasmid is digested to completion with appropriate restriction enzymes to yield 11 bands suitable for use as molecular weight standards for both agarose and polyacrylamide gel electrophoresis

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Product Image-103258-568

QUICK-LOAD® Purple DNA Ladder, New England BioLabs

Supplier: New England Biolabs (NEB)
Description: Quick-Load Purple 2-Log DNA Ladder is a pre-mixed, ready-to-load molecular weight marker containing one tracking dye

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Product Image-77461-670

Gelite™ 50 bp DNA Ladder

Catalog Number: (77461-670)
Supplier: AAT BIOQUEST INC
Description: The Gelite™ 50 bp DNA Ladder is ideal for sizing and approximating the mass of double-stranded DNA within the 50 to 1500 bp range on agarose or polyacrylamide gels.
Product Image-101449-342

Supercoiled DNA Ladder , New England Biolabs

Catalog Number: (101449-342)
Supplier: New England Biolabs (NEB)
Description: The Supercoiled DNA ladder contains 9 proprietary supercoiled plasmids, ranging in size from 2 to 10 kb, that are suitable for use as supercoiled molecular weight standards for agarose electrophoresis

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Product Image-101228-488

DNA Ladder, 100 bp, New England Biolabs

Supplier: New England Biolabs (NEB)
Description: A number of proprietary plasmids are digested to completion with appropriate restriction enzymes to yield 12 bands suitable for use as molecular weight standards for agarose gel electrophoresis.

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Product Image-101228-444

Lambda DNA-BstE II Digest, New England Biolabs

Catalog Number: (101228-444)
Supplier: New England Biolabs (NEB)
Description: The BstEII digest of lambda DNA (cI857 ind 1 Sam 7) yields 14 fragments suitable for use as molecular weight standards for agarose gel electrophoresis

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Product Image-101228-426

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

Supplier: New England Biolabs (NEB)
Description: 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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Product Image-200064-448

dsRNA Ladder, New England Biolabs

Catalog Number: (200064-448)
Supplier: New England Biolabs (NEB)
Description: The dsRNA Ladder is a set of 7 annealed double-stranded RNA molecules produced by in vitro transcription of 14 linear DNA templates

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Product Image-PAD1501

Lambda DNA, 250 µg, Promega

Catalog Number: (PAD1501)
Supplier: Promega Corporation
Description: Generates molecular weight size markers used in gel analysis of nucleic acids; nucleotide sequence has been determined.

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Product Image-PAG1741

pGEM DNA Markers, 50 µg, Promega

Catalog Number: (PAG1741)
Supplier: Promega Corporation
Description: 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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Product Image-PAG1721

Lambda DNA/EcoRI Markers, 100 µg, Promega

Catalog Number: (PAG1721)
Supplier: Promega Corporation
Description: Generated by digesting lambda DNA to completion with EcoRI, resulting in six DNA fragments of 3,530-21,226bp.

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Product Image-PAG7531

BenchTop PCR Markers, 300 µl, Promega

Catalog Number: (PAG7531)
Supplier: Promega Corporation
Description: 50-1,000bp; 6 bands. Can be stored at room temperature. Contains dye marker, ready to load on agarose and polyacrylamide gels.

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us at 1-800-932-5000.
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