The characterization of long-range correlations and fractal properties of DNA sequences has proved to be a difficult though rewarding task mainly due to the mosaic character of DNA consisting of many patches of various lengths with different nucleotide constitutions. In this paper we investigate statistical correlations among different positions in DNA sequences using the two-dimensional DNA walk. The root-mean-square fluctuation F(l) is described by a power law. The autocorrelation function C(l), which is used to measure the linear dependence and periodicity, exists a power law of C(l) -τμ. We also calculate the mean-square distance <R2(l)> along the DNA chain, and it may be expressed as <R2(l)> - l r with 2 >γ> 1. Our investigations can provide some insights into long-range correlations in DNA sequences.
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机译:Beapaling van DNa-schade in aan Ioniserende straling Blootgestel - de Cellen遇到了Behulp van monoklonale antilichamen Gericht Tegen Enkelstrengig DNa(通过使用抗单链DNa单克隆抗体检测暴露于电离辐射的细胞中的DNa损伤)