But we should aware the technical difference. There are several steps in the design and implementation of a DNA microarray experiment. Many strategies have been investigated at each of these steps. There are so many options and combinations, as can been seen from the number of companies involved in this business. The forecast is further complicated by recent fights among companies on intellectual property issues.
Optical scanner measures the strength of the fluorescence of each sample spot.
Effectiveness of some medical treatment can be studied by looking at changes in gene activity. Their mRNA were isolated, and fluorescently labeled cDNA prepared. The cDNA from each time-point together with the reference cDNA were hybridized to the microarray with approximately 6400 DNA sequences representing ORFs of the yeast genome. The are two fluorescents 1. Please view some examples of the microarray image .