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The Genaxxon bioscience 1 kbp-ladder is the ideal DNA size marker for fragment sizes from 250 – 10000 bp. All bands light up to the same intensity except the 1000bp and 3000bp band which is twice as bright for better orientation. Each band has been calibrated with respect to base pair size and DNA quantity. Thus, an accurate determination of product size and DNA concentration is possible. No ambiguous bands are visible.
The GenLadder 1 kb can be directly labeled at the 5′-end with radioisotopes using T4 polynucleotide Kinase for visualisation by autoradiography.