50bp DNA Ladder is supplied by HiMedia. The 50 bp DNA ladder is a mixture of specially designed double-stranded DNA fragments for determining the exact size of PCR products and engineered DNA fragments. The 50bp DNA ladder consists of 17 DNA fragments ranging in size from 50 to 1500bp. The amounts of 200, 500 and 1200bp fragments are adjusted so that their increased intensities serve as easy references after gel electrophoresis. The ladders are supplied pre-mixed with loading buffer. It is advisable to store this product at -20C. Recommended load: 3 l / lane

DNA ladder or Gene ladder, consists of purified DNA bands spanning from 100 base pair to 1000 base pairs or even higher, depending on the size of the ladder. They are used to identify the molecular weight of an unknown linear fragment of the DNA when loaded and run in agarose gel electrophoresis, along with the test samples. A typical pack has 250 micrograms of the mass at 1 microgram/microliter concentration. Generally, one microliter is loaded for running on a single gel. The ladder is sensitive. A standard curve may be drawn to quantify DNA.