The ReadyLadder™ 1 kb DNA Ladder from GoldBio offers a convenient, ready-to-use solution for accurate DNA sizing in agarose gel electrophoresis. Featuring 13 defined bands spanning 250 bp to 10 kb, it provides the resolution needed for routine molecular biology experiments.

For easy visualization, the 1 kb and 3 kb bands are presented with greater intensity, ensuring fast orientation on the gel. With each load containing 0.5 μg of DNA, users can not only determine fragment size but also estimate DNA quantity by comparing band intensity. Premixed with Xylene cyanol FF and Bromophenol blue tracking dyes, this ladder simplifies workflows by allowing direct gel loading and real-time tracking of DNA migration. Reliable, consistent, and stable during shipping and storage, it’s an essential tool for accurate DNA analysis.

GoldBio’s ReadyLadder™ 1 kb PLUS™ DNA Ladder is a reliable, ready-to-use molecular weight marker designed for accurate sizing of medium-to-large DNA fragments. Composed of 14 distinct bands ranging from 250 bp to 25 kb, this ladder provides excellent coverage for routine electrophoresis.

To simplify interpretation, it includes two enhanced reference bands (3 kb and 1 kb) that stand out for quick identification. The ladder is premixed with loading buffer, containing Xylene cyanol FF and Bromophenol blue tracking dyes, enabling direct gel loading and real-time monitoring of DNA migration. Stable for ambient-temperature shipping and long-term storage, this ladder offers sharp, consistent bands and dependable performance for everyday molecular biology workflows.

GoldBio’s ReadyLadder™ 100 bp DNA Ladder is a convenient, ready-to-use molecular weight marker designed for accurate sizing of small DNA fragments. Composed of 11 defined bands ranging from 100 bp to 1,500 bp, this ladder is ideal for applications requiring high resolution of low–molecular weight DNA.

The 1,500 bp and 500 bp bands are intensified, giving you clear visual markers that make gel interpretation straightforward. With 0.5 μg of DNA per load, the ladder not only supports accurate fragment size determination but also provides a convenient way to estimate sample quantities by comparing band intensity. Because it is premixed with Orange G and Xylene cyanol FF tracking dyes, you can load it directly onto the gel and follow migration in real time. This ladder is designed for sharp, reproducible banding and long-term stability.

GoldBio’s ReadyLadder™ 100 bp PLUS™ DNA Ladder is a versatile, ready-to-use molecular weight marker designed for sizing small- to mid-range DNA fragments in agarose gel electrophoresis. With 12 clearly defined bands spanning 100 bp to 3,000 bp, this ladder is well-suited for applications that require precision across a broader range of low–molecular weight DNA. 

To simplify gel analysis, the 500 bp and 1,500 bp bands are enhanced in intensity, providing instant reference points during runs. Each load contains 0.5 μg of DNA, allowing researchers to approximate DNA quantity in experimental samples through direct band comparison. Pre-formulated with Orange G and Xylene cyanol FF tracking dyes, this ladder is optimized for direct gel loading and real-time visualization of migration. Its sharp banding patterns, ease of use, and shipping stability make it a dependable tool for everyday molecular biology workflows.

GoldBio’s ReadyLadder™ 50 bp DNA Ladder is a precise, ready-to-use molecular weight marker designed for sizing small DNA fragments in agarose gel electrophoresis. Featuring 17 distinct bands from 50 bp to 1,500 bp, it provides excellent resolution for low–molecular weight applications.

To streamline gel analysis, the 200 bp and 500 bp bands are enhanced in intensity, serving as clear visual reference points. Each well load delivers 0.5 μg of DNA, enabling both accurate fragment sizing and approximate quantification by comparing band intensities. Premixed with Orange G tracking dye, this ladder is optimized for direct gel loading and real-time monitoring. With sharp, consistent banding patterns and reliable storage stability, it offers dependable performance for routine laboratory workflows.

GoldBio’s ReadyLadder™ 100–10,000 bp DNA Ladder is a ready-to-use molecular weight marker designed for versatile DNA sizing across a broad range of fragments. With 19 distinct bands spanning 100 bp to 10 kb, it offers reliable resolution for both low- and mid-range electrophoresis applications. 

The 500 bp, 1.5 kb, and 3 kb bands are enhanced in intensity, providing immediate visual reference points that simplify gel interpretation. Each well load delivers 0.5 μg of DNA, enabling users to estimate fragment size and approximate DNA quantity by comparing band intensities. Premixed with Xylene cyanol FF, Bromophenol blue, and Orange G tracking dyes, the ladder supports direct gel loading and allows real-time monitoring of migration. Stable, sharp, and easy to use, it is an essential tool for consistent results in routine molecular biology workflows.

GoldBio’s ReadyLadder™ 50 bp – 25 kb DNA Ladder is a convenient, ready-to-use molecular weight marker designed for precise sizing across a wide range of DNA fragments. This ladder is composed of 26 distinct bands from 50 bp to 25,000 bp:  25k, 10k, 8k, 6k, 5k, 4k, 3k, 2.5k, 2k, 1.5k, 1.2k, 1k, 900, 800, 700, 600, 500, 450, 400, 350, 300, 250, 200, 150, 100 and 50 base pairs derived from a mixture of PCR products and specifically digested plasmid DNA. Get clear resolution for both small and large DNA fragments in a single run.

To simplify interpretation, four enhanced reference bands (3 kb, 1.2 kb, 500 bp, and 200 bp) stand out for quick visual alignment. Pre-mixed with three tracking dyes (Xylene cyanol FF, Bromophenol blue, and Orange G), it allows direct gel loading and real-time monitoring of migration. With sharp, reliable bands, room-temperature stability for up to 6 months, and long-term storage options at 4°C or -20°C, this ladder delivers accuracy, ease of use, and dependable performance for routine electrophoresis applications.