200 bp DNA Ladder

The 200 bp DNA ladder is a molecular weight marker designed for accurate sizing and approximate quantification of double-stranded DNA fragments, typically ranging from 200 bp up to 4000 bp or more. It consists of multiple discrete DNA fragments spaced mostly in 200 bp increments, such as 200, 400, 600, 800, 1000 bp, and extending to larger sizes like 1400, 1600, 2000, and 4000 bp.

Key Features Include:

• Ready-to-Use Formulation: Premixed with loading buffer for direct application to agarose gels.
• Contains 12 Distinct DNA Fragments: With an intense band at 1000 bp for easy gel orientation.
• Provides Approximately 50 ng DNA per Band: When loading 6 µl, with the 1000 bp band at about 100 ng for enhanced visibility.
• Compatibility: Suitable with standard agarose gel electrophoresis and common DNA stains.
• Suitable for Sizing: PCR products, restriction fragments, and other DNA samples in the 200–4000 bp range.

Some versions also include tracking dyes to monitor electrophoresis progress. The ladder is stable when stored at 4°C for up to 2 years or at -20°C for long-term storage.

Additionally, variants like the 200 bp DNA Step Ladder offer a broader range with fragments from 200 bp up to 6600 bp in 200 bp increments, with the 1000 bp band appearing brighter for easy identification.