(AGS17, top) Gene predictions in one of the artificial genomic sequences. The row EMBL indicates the coordinates of the actual genes. Exons corresponding to the same gene (or predicted to be in the same gene) are linked by a box. (AGS17, middle) Predictions of GENSCAN finders in the region 23,000 to 41,000 from the semiartificial genomic sequence. (HSIL9RA, bottom) The predictions improve if GENSCAN is provided only the 18,000-bp long genic sequence that has been inserted in this region. This figure, as well as Fig. 1, has been prepared using gff2ps. (Abril and Guigó 2000)