What is a microarray?

Arrays of known stretches of DNA on solid supports can be used as "probes" for complementary labelled nucleic acids in solution. DNA arrays are used to determine global gene expression patterns from RNA preparations. Hybridisation of labelled genomic DNA from diverse strains or species can also reveal the genetic basis of the diversity. In accordance with the recommended nomenclature we have used "probe" to refer to the DNA immobilised on a solid surface and "target" the labelled DNA in solution.

Selected microarray sites

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