FIELD: biotechnology.
SUBSTANCE: invention relates to a method for selecting cows in order to improve their reproductive qualities. The assessment of the karyological status of cows is carried out taking into account the associative ability of chromosomes and the spatial orientation of X chromosomes, namely the fixed position of X chromosomes in the centre of the interphase nucleus.
EFFECT: comprehensive assessment and establishing the karyological status of cows and donor cows.
1 cl, 1 tbl
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