Comparison of genomic libraries and sequence database investigations for HSA Chr 7. (A) The position of minisatellite loci characterized in this report (one locus) and in Amarger et al. (1998)for chromosome 7, showing the predominantly, but not exclusively, telomeric location of minisatellites on this chromosome and the imbalance between the two chromosome ends. (B) The density of tandem repeats as detected in the sequence data (repeat unit >20 bp, repetition spanning at least 1000 nucleotides). (C) The density of long CA-rich sequences (in which the similarity, as detected by FASTA, with the 800-bp long CA₄₀₀ query spans 300 bp or more). (D) The distribution of ESTs characterized so far along the chromosome. The numbering (1–11) refers to the eleven bins defined in the Methods section. The largest peak, in B and C, corresponds to a density of, respectively, two and three qualifying objects per megabase of sequence available for this bin.