Abstract

Micro-and minisatellites constitute an essential part of DNA with low sequence complexity and perform a number of important functions. The TandemSWAN program was used to search the human genome for tandem repeats with a length of a repeated unit to 70 bp, including repeats with a large number of nucleotide substitutions. It was shown that, for a significant fraction of the program-found minisatellites with a repeat unit length less than 25 bp, a shorter repeated motif can be discerned in this sequence, which is often similar to the sequence of microsatellites occurring widely in the human genome. A model of hierarchical origin of minisatellites in the human genome was proposed.

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