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. 2005 Dec 28;34(Database issue):D590–D598. doi: 10.1093/nar/gkj144

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© The Author 2006. Published by Oxford University Press. All rights reserved

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Genome Browser, zoomed out to view all of human chromosome 21 in the May 2004 assembly. A title line and assembly/position line have been added using the Base Position track's new label options. Large gaps show the location of unsequenced heterochromatin. Most tracks are in ‘dense’ display mode, so that all items are condensed into a single row. The Known Genes track is in ‘squish’ mode so that individual features are drawn at half-height; this gives an idea of gene density when viewing large regions. The cross-species Net tracks are in ‘full’ mode so that the hierarchy of alignments to each other species is clear. Human chromosome 21 contains two ENCODE regions (shown in ‘pack’ mode), in which dozens of additional tracks are available. This image is not a screen snapshot but rather a PostScript image generated by the Genome Browser.