. . . . . "In a particularly preferred variant of the method, the nucleobases of type Cl are selected from a group including bases T, A and C or else bases T, A and G. In a further, particularly preferred variant of the method, the nucleobases of type C 2 are selected from a group including either bases T and C or else bases G and A. [0070] The labeling of the elongated oligonucleotides of type B is preferab" .