Biochips for Gene Spotting

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Science  19 Oct 2001:
Vol. 294, Issue 5542, pp. 621-623
DOI: 10.1126/science.294.5542.621

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Biochips containing microarrays of genetic information promise to be important research tools in the postgenomic era. Because DNA microarray can contain many thousands of samples, each representing a single gene, it is possible to design a single chip containing the complete gene set of a complex organism (30,000 to 60,000 genes). DNA microarrays provide a powerful way to simultaneously analyze the expression of thousands of genes. This article describes the design and uses of microarrays of DNA.