THE GREAT DNA CHIP DERBY.

AFFYMETRIX Inc. 804682573 AFFX

This article features DNA chips that will revolutionize molecular biology. DNA chips are thin wafers of glass or plastic with thousands of microscopic bits of DNA arrayed on their surfaces. Soon, DNA chips will allow personalized medicine, the rapid design of custom therapies based on an individual patient's genetic makeup. DNA chips need to win regulatory approval from the U.S. Food & Drug Administration before their use in diagnostics becomes routine. Affymetrix, with its ability to manufacture high-quality DNA chips, excels in this kind of market. INSETS: DEAD-ON DIAGNOSIS;DEAD-ON DIAGNOSIS.