a probe - bearing element according to the present invention includes a sheet - like body having a plurality of through holes which each bears a biopolymer probe . the sheet - like body may have a thickness of 100 μm to 2 mm , and may be made of glass , acrylic resin , metal or plastic . preferably , the size of the through hole is about 10 - 100 μm in diameter considering the number of samples relative to the size of the element , amounts of probes required for hybridization and the detection sensitivity . the plurality of through holes are preferably arranged in concentric circles or in a spiral .