Table 2 Gene tracks from the UCSC Genome Browser Database used for finding genomic locations of Entrez Genes and to create the genemap table to store mapping information. Tracks were used hierarchically in the order shown here from top to bottom.Genes in track are the number of distinct Entrez genes in the Sequence Track. Genes in Multiple positions cannot be mapped to a unique position. Genes in Random scaffolds map to unordered scaffolds. Used Genes refers to the number of non redundant genes with a unique position in the genome that were imported to the genemap table.

From: Comparison of gene coverage of mouse oligonucleotide microarray platforms