The probe can be labeled and may form a hybridization complex with a sample polynucleotide due to the complementarity of a nucleotide sequence in the probe with a nucleotide sequence in the sample polynucleotide. [0033] The term ???microarray,??? as used herein, refers to an array of distinct polynucleotides or oligonucleotides arranged on a substrate, such as paper, nylon or other type of membran