Human Biology, 14 Edition

Published by McGraw-Hill Education
ISBN 10: 1-25924-574-8
ISBN 13: 978-1-25924-574-9

Chapter 2 - Assess - Page 43: 19

Answer

d.

Work Step by Step

The answer is d. because both option a. and option b. are correct. RNA, as opposed to DNA, contains a ribose sugar and uracil as a base instead of thymine. DNA contains a sugar called deoxyribose, and thymine replaces the base uracil in RNA. Option c. is incorrect because both DNA and RNA contain a phosphate backbone.
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