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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-CA101227-144

TRIDYE™ DNA Ladder, 100 bp , New England Biolabs

Catalog Number: (CA101227-144)
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
Product Image-CA102877-810

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

Product Image-CA101228-466

pBR322 DNA-BstN I Digest, New England Biolabs

Catalog Number: (CA101228-466)
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
Product Image-CA101228-496

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

Product Image-CA101228-472

pBR322 DNA-Msp I Digest, New England Biolabs

Catalog Number: (CA101228-472)
Supplier: New England Biolabs (NEB)
Description: The MspI digest of pBR322 DNA yields 26 fragments
Product Image-CA101228-488

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-CA101449-372

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

Product Image-CA101228-444

Lambda DNA-BstE II Digest, New England Biolabs

Catalog Number: (CA101228-444)
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
Product Image-CA200064-448

dsRNA Ladder, New England Biolabs

Catalog Number: (CA200064-448)
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
Product Image-CA101449-342

Supercoiled DNA Ladder , New England Biolabs

Catalog Number: (CA101449-342)
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
Product Image-76196-402

MidRange PFG Marker, New England Biolabs

Catalog Number: (76196-402)
Supplier: New England Biolabs (NEB)
Description: MidRange PFG Marker consists of concatemers of DNA isolated from the bacteriophage (cI857 ind1 Sam7) mixed with XhoI digested DNA embedded in 1% LMP agarose and supplied in a GelSyringe dispenser.
Product Image-CA76339-754

TriDye Ultra Low Range DNA Ladder, New England Biolabs

Catalog Number: (CA76339-754)
Supplier: New England Biolabs (NEB)
Description: 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.
Product Image-CA76339-756

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

Catalog Number: (CA76339-756)
Supplier: New England Biolabs (NEB)
Description: 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.
Product Image-77461-676

Gelite™ 100 bp to 1 kb DNA Ladder

Catalog Number: (77461-676)
Supplier: AAT BIOQUEST INC
Description: The Gelite™ 100 bp to 1 kb DNA ladder is designed to help size and estimate the mass of double-stranded DNA and PCR products within the 100 to 10000 base pair range on agarose or polyacrylamide gels.
Product Image-CA12001-732

DNA Markers and Ladders

Supplier: Lonza
Description: Lonza DNA Ladders are precision manufactured to provide rapid and easy size determination of your DNA samples.

Certificates

Product Image-CA101228-410

ssRNA Ladder, New England Biolabs

Catalog Number: (CA101228-410)
Supplier: New England Biolabs (NEB)
Description: The ssRNA Ladder is a set of 7 RNA molecules produced by in vitro transcription of a mixture of 7 linear DNA templates
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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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