Biology 2010 Student Edition

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

Chapter 12, DNA - Standardized Test Prep - Page 359: 1



Work Step by Step

According to the rule of base pairing, adenine always pairs with thymine and cytosine must pair up with guanine. Therefore, where we see an A, a T would bond there whereas where we see a C, a G would bond to it. Only option B gives us the correct base pairing.
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