The gene amplification technique invented by genetics researcher Kary Mullis on a moonlit drive through the northern California hills a decade ago--the polymerase chain reaction (PCR)-- continues to revolutionize the life sciences. Uses in molecular biology research and in diagnostic tests are proliferating, and PCR is even bringing a new molecular approach to such fields as paleontology and epidemiology.

The following companies are among those supplying PCR-related products for the research laboratory.

J.T. Baker Inc.
222 Red School La.
Phillipsburg, N.J. 08865
(800) 582-2537
Fax: (908) 859-9318
Product: MDE heteroduplex
starter kit, $250

Bio-Rad Laboratories Inc.
3300 Regatta Blvd.
Richmond, Calif. 94804
(800) 4BIO-RAD
Fax: (415) 232-4257
Product: InstaGene DNA
Purification Matrix, $30

National Biosciences Inc.
3650 Annapolis La.
Plymouth, Minn. 55447
(800) 747-4362
Fax: (800) 369-5118
Product: Oligo ver. 4.1 for PC,
4.0 for Mac; call for prices

Perkin-Elmer Corp.
761 Main Ave.
Norwalk, Conn. 06859-0310
(800) 762-4000

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