Biology: The Unity and Diversity of Life (14th Edition)

Published by Brooks/Cole Publishing Co.
ISBN 10: 1305073959
ISBN 13: 978-1-30507-395-1

Chapter 8 - Self-Quiz - Page 147: 11

Answer

B. The numbers refer to the carbon atoms within the sugar in a nucleotide. The sugar in DNA is deoxyribose. It contains 5 total carbon atoms. You count the carbons by starting with the first carbon to the right of the oxygen in the sugar molecule.

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