A mini-revolution is sweeping the world of science and medicine. DNA chip o
r microarray technology will have a more profound impact than other recent
major advances, including DNA sequencing and the polymerase chain reaction
(PCR), This mini-review explains the technology, its scope, and impact on s
cience and medicine, as well as its cost and possible limitations. Copyrigh
t (C) 1999 John Wiley & Sons, Ltd.