When the array is scanned, green or red spots indicate expression of the gene in only one sample, and yellow spots indicate expression of the gene in both samples.

Right: an example of raw data from Pyrosequencing, a cyclic-array method. The identity of nucleotides used at each extension step are listed along the x-axis. The y-axis depicts the measured ...

Save guides, add subjects and pick up where you left off with your BBC account. Arrays let programmers store lists of related data such as a list of scores, a list of first names or a list of cities.