Аннотация:The paper presents the results of studies on the development of metrological support for DNA sequencing.The sequencing of a standard sample of the human mitochondrial DNA was carried out according to the Sanger method ondomestic capillary electrophoresis genetic analyzers Nanophore 05. The results of the work were used to validate standardreference material for human mitochondrial DNA sequence and to confirm the DNA sequencer as a measurement instrument.