Patent ID: 7060814

Claim:
Probes for forming a probe-polymer comprising a first probe and a second probe having the following characteristics (a), (b), (c), and (d): (a) the first and second probes each comprising n base sequence regions complementary to each other, wherein an X 1 region, an X 2 region, an X 3 region, . . . an X n region provided in this order from the 5′-terminal of the first probe have base sequences complementary respectively to an X 1 ′ region, an X 2 ′ region, an X 3 ′ region, . . . an X n ′ region provided in this order from the 5′ terminal of the second probe, wherein n is at least 3; (b) when the first and second probes are reacted with each other, the X 1 region hybridizes only to the X 1 ′ region, the X 2 region hybridizes only to the X 2 ′ region, the X 3 region hybridizes only to the X 3 ′ region, . . . and the X n region hybridizes only to the X n ′ region, and when both the probes are bound, they hybridize to each other at any one of the regions in one probe, and a plurality of the first and second probes bound at the one region hybridize to each other to form a probe-polymer; (c) at least one G (guanine) or C (cytosine) is arranged at both terminals of each one of the complementary base sequence regions in the first and second probes, and upon hybridization of the first and second probes, at least one C—G bond is formed at all of the terminals of the complementary regions; and (d) the number of bases in each complementary base sequence region in the first and second probes is at least 8.