Biology 2010 Student Edition

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

Chapter 13, RNA and Protein Synthesis - 13.1 - RNA - 13.1 Assessment - Page 365: 1a

Answer

Three differences: 1. DNA is double-stranded and RNA is single-stranded 2. DNA contains thymine whereas RNA contains uracil 3. DNA lacks one oxygen molecule compared to RNA

Work Step by Step

DNA is a double-stranded helix and RNA is single-stranded. During transcription, RNA polymerase uses uracil to build the mRNA instead of thymine. Additionally, DNA lacks one oxygen molecule on the pentose compared to RNA.
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