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Median length of gene by position of TSS with respect to the segment boundaries. The bins have been defined by the quantiles of the distribution within the range plotted. The error bars show 95% confidence ranges using Hettmansperger-Sheather's method. (a) shows the A+/T+ boundary and (b) shows the T+/A+ boundary. a) in each bin, n ~ 788; b) in each bin, n ~ 655.
