Figure 1From: Patterns and rates of intron divergence between humans and chimpanzeesMean Ki as a function of the ordinal position of introns (relative to other introns of the same gene). Single introns constitute a special category. All introns whose number within the gene was above 20 were pooled together, to avoid classes of sample size that was too different. The number above each bar represents the sample size of each category. First and single introns are the more divergent ones.Back to article page