Hybridization of a nucleic acid sample to a very large set of OLIGONUCLEOTIDE PROBES, which have been attached individually in columns and rows to a solid support, to determine a BASE SEQUENCE, or to detect variations in a gene sequence, GENE EXPRESSION, or for GENE MAPPING.

Synonyms: Chip, Gene, Microarrays, cDNA, Microarray, DNA, cDNA Array, Oligonucleotide Array Sequence Analysis, Array, Oligonucleotide, Arrays, Oligonucleotide, Array, cDNA, Microchips, DNA, Oligonucleotide Microarrays, cDNA Microarrays, Gene Chip, Microarrays, Oligonucleotide, Chips, DNA, Microarrays, DNA, DNA Microchips, DNA Arrays, Sequence Analysis, Oligonucleotide Array, Chips, Gene, Microchip, DNA, Microarray, cDNA, cDNA Arrays, Oligonucleotide Array, DNA Chips, DNA Microarrays, Gene Chips, Oligonucleotide Microarray, Oligonucleotide Arrays, DNA Array, Microarray, Oligonucleotide, Arrays, cDNA, Arrays, DNA, DNA Chip, Oligodeoxyribonucleotide Array Sequence Analysis, cDNA Microarray, Chip, DNA, Array, DNA, DNA Microchip, DNA Microarray