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. 2014 Dec 1;9(12):e112534. doi: 10.1371/journal.pone.0112534

Figure 2. PDFs of the inter-nucleotide intervals A-A, T-T (open symbols); G-G, C-C (full symbols) in the DNA sequences from Archaea (Inline graphic) (48 species), Bacteria (Inline graphic) (72 species) and H. Sapiens (Inline graphic) (22 chromosomes).

Figure 2

For comparison, dotted lines show corresponding exponential PDFs. The inset shows the size distribution plots of the DNA sequences considered.