Statistical significance of some complex nucleotide combinations: a comparison of DNA models
Institute of Molecular Genetics, USSR Academy of Sciences Kurchatov Square, Moscow 123182, USSR
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DNA is modelled as a sequence of nucleotide runs. This model is shown to provide a more adequate description of the observed frequencies of occurrence of local homopurine-homopyrimidine mirror repeats than the second-order homogeneous Markov chain model. The procedure is described for estimating the statistical significance of the occurrence of some complex nucleotide combinations in DNA.
Received on August 21, 1989; accepted on August 25, 1989