Figure 1.

Panel A. Distributions of exons-per-gene for TWINSCAN [4] and GENSCAN [5] gene predictions and RefSeq mRNA sequences aligned to the genome. The plot reveals that, although TWINSCAN predicts too few genes in the 5–20 exon range, it predicts the right proportion of genes with more than 25 exons. Panel B. Fraction of RefSeq genes that TWINSCAN and GENSCAN predict exactly right, as a function of the genomic length of the RefSeq, excluding UTRs. Both figures were made in Excel by importing Eval output as tab-separated files. Data in both panes was generated using the NCBI34 version of the human genome and TWINSCAN 1.2.