  The distribution of bases spacing in human genome was investigated. An
analysis of the frequency of occurrence in the human genome of different
sequence lengths flanked by one type of nucleotide was carried out showing that
the distribution has no self-similar (fractal) structure. The results
nevertheless revealed several characteristic features: (i) the distribution for
short-range spacing is quite similar to the purely stochastic sequences; (ii)
the distribution for long-range spacing essentially deviates from the random
sequence distribution, showing strong long-range correlations; (iii) the
differences between (A, T) and (C, G) bases are quite significant; (iv) the
spacing distribution displays tiny oscillations.

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