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the order of restriction sites along a chromosome or plasmid.
restriction mapA diagram of the sites on DNA that are cut by different RESTRICTION ENZYMES.
for a DNA molecule, is constructed for a particular restriction endonuclease by ordering the fragments left to right in the DNA molecule. By convention, there are six fragments which are labeled in order of decreasing size, ABCDEF, but the order left to right in the genome may be DCBAFE.