A cDNA microarray is a hybrid of a DNA microarray, which is a collection of a number of minute DNA dots. These are mostly used in the field of genetic testing.

mRNA is extracted from cells for DNA microarray.

the mRNA is then converted in the lab to cDNA

this cDNA is allowed to interact with the probes on the microarray chip

DNA microarray analysis is a technique used to match up two strands of DNA. It is used in paternity tests and in criminal investigations in which a perpetrator's DNA was found at the crime scene.

Otherwise known as "microarray chips," DNA microarray are used to determined the genetic makeup of a given tissue sample. By shining various bands of light on these chips, the gene(s) in the tissue are expressed in the form of a particular color.

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