FIELD: medicine.
SUBSTANCE: what is offered is a method of marking a human 7th chromosome providing in situ hybridisation of metaphasic or interphasic cell chromosomes of a tested sample and a DNA probe presented by a marker plasmid alpha R1-13 which consists of EcoR 1-EcoR l DNA fragment of a pBR 325 vector of the value 5966 base pairs and EcoRl-EcoRl alphoid DNA fragment of the human 7th chromosome of the value 680 base pairs. The testing environment in which the used DNA-probe specifically interacts with a centromeric region of the 7th chromosome without cross hybridisation with other human chromosomes are developed.
EFFECT: more efficient identification of the presented chromosome and enabled application of the new method in medical diagnostics.
4 ex
Authors
Dates
2011-08-10—Published
2009-05-21—Filed