Comparative statistical analysis of bacteria genomes in “word” context

Statistical analysis of bacteria genomes has been performed on the basis of 20 complete genomes’ texts origin from Genebank. It has been revealed that the word ranked distributions are quite well approximated by logarithmic law. The results obtained in the absent word investigation show the considerably nonrandom character of DNA texts. In character of autocorrelation function behavior in several genomes period-3 oscillations have been observed. Short-range autocorrelations are present in short (n=3) words and practically absent in longer words.