Figure 2From: Abundance, arrangement, and function of sequence motifs in the chicken promotersThe average number of STR units detected in avian and mammalian promoters. Note that only perfect repeats with at least six units are considered here. The number of STR loci is described under each bar. The total number of promoter sequences for five organisms are: chicken (13,754), duck (13,583), zebra finch (15,633), mouse (27,046), and human (38,687).Back to article page