Counts of reads along gene Apoe in different tissues of the Wold data. (a) Brain, (b) liver, (c) skeletal muscle. Each vertical line stands for the count of reads starting at that position. The grey lines are counts in the UTR regions and a further 100 bp. Here introns are deleted and exons are connected into a single piece. Only shown are counts on one strand of the gene; counts on the other strand show similar similarities in different tissues. Nt: nucleotides.