Digitized and differentially shaded human chromosome ideograms for genomic applications.

Human chromosome ideograms that depict 850 bands, numbered in agreement with ISCN (1981) nomenclature but based on actual measurements of band sizes and differentiated by five shades of staining intensity, have been digitized using commercially available graphics software. They provide for more accurate estimates of distances within chromosome arms, DNA content of chromosome bands and correlation between cytogenetic, molecular and genetic linkage maps than the standard ISCN ideograms.