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Evolution of long-range fractal correlations and 1/f noise in DNA base sequences Export

Physical Review Letters, Vol. 68, No. 25. (22 June 1992), 3805.

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A new method of quantifying correlations in symbolic sequences is applied to DNA nucleotides. Spectral density measurements of individual base positions demonstrate the ubiquity of low-frequency 1/ f β noise and long-range fractal correlations as well as prominent short-range periodicities. Ensemble averages over classifications in the GenBank databank (primate; invertebrate; plant; etc.) show systematic changes in spectral exponent β with evolutionary category.


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