Figure 4From: A stitch in time: Efficient computation of genomic DNA melting bubblesThe set F of all fractal frames plotted in the xy -plane. The fractal frames (a, b) ∈ F are colored to distinguish those with depths D(a, b) ≥ Dmax (grey) and D(a, b) <Dmax (blue), thus illustrating the subsets Fd and Fs, respectively. Frames with side lengths below 20 bp are not shown to unclutter the figure.Back to article page