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Ladders & Markers

Band sizes for common DNA ladders, protein standards and RNA ladders. Search by name, maker or a band size, and send a ladder straight to the Gel & Blot Labeller.

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Disclaimer: Band sizes are taken from the makers’ datasheets and checked on 19 October 2026. Makers change products from time to time, so always check the datasheet for your lot. Product names identify the products described; Only Cells is not linked to or endorsed by the makers.