Nucleic acid array with releaseable nucleic acid probes

A process of identifying a probe sequence to complementary target nucleic acid comprising:

• hybridizing a nucleic acid probe complementary to the complementary target nucleic acid to a carrier yield a probe-carrier complex;
• placing said probe-carrier complex into a compartment bounded by a first side of media permeable to said nucleic acid probe and exclusive of said carrier and said complex;
• denaturing said complex;
• allowing said nucleic acid probe to migrate through said media to a second side;
• bringing the complementary target nucleic acid into contact with said nucleic acid probe;
• providing hybridization conditions such that said nucleic acid probe has an opportunity to hybridize to the complementary target nucleic acid to yield a probe-target complex;
• allowing said nucleic acid probe the opportunity to rehybridize to said carrier when said nucleic acid probe is not part of said probe-target complex;
• and
• determining whether at least one of the complementary target nucleic acid or said carrier is present as said probe-carrier complex or said probe-target complex to identify a probe sequence to complementary target nucleic acid.