restriction map

map (map) a two-dimensional graphic representation of arrangement in space.

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cytogenetic map , cytologic map a gene map giving the position of gene loci relative to chromosome bands.

fate map  a plan of a blastula or other early stage of an embryo, showing areas of prospective significance in normal development.

gene map  one showing the positions of genetic loci on the chromosomes and usually giving some indication of the distance between loci.

genetic map , linkage map a gene map giving the relative locations of genetic markers, based on recombination frequencies.

physical map  a gene map showing the locations of genetic markers along with the physical distances between them.

restriction map  a physical map indicating restriction enzyme cleavage sites.

transduction map  in bacterial genetics, a gene map giving distances between loci based on relative cotransduction frequencies.

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restriction map

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.