Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 15, Genetic Engineering - 15.2 - Recombinant DNA - 15.2 Assessment - Page 427: 1a


Scientists quickly replicate DNA with a polymerase chain reaction (PCR).

Work Step by Step

1. The PCR heats up to $94^{\circ}C$ and the hydrogen bonds holding the double-stranded helix together is broken. 2. The PCR cools to allow primers to bind to DNA. This also prevents DNA from reannealing 3. The PCR reheats and TAQ polymerase duplicates the DNA strands. 4. In the end, the DNA is duplicated
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