Genetic analysis by sequence-specific sorting

The present invention offers the method for classifying polynucleotide from a group based on predetermined sequence specificity. In one aspect of affairs, the method of the present invention elongates the primer by which annealing was carried out to the polynucleotide which has the predetermined arrangement characteristic, The polynucleotide which has the process of taking in the predetermined terminator which has a capture portion, and the elongated primer, The process caught by the capture agent specifically combined with the above-mentioned capture portion and the polynucleotide caught [above-mentioned] are dissolved from the primer elongated [above-mentioned], and it carries out according to the process of forming the sub group of polynucleotide who has the predetermined arrangement characteristic. As opposed to the group of the polynucleotide by which the method of the present invention was tag-ized in another aspect of affairs, After a sub group is chosen, the sub group's member is simultaneously analyzed using the characteristic tag on polynucleotide, and it carries out so that analytic information can be changed into the hybridization array for read-out.