Answer
You can compare DNA or RNA sequences to tell if organisms are closely related.
Work Step by Step
Organisms that are more similar in DNA or RNA structures are more closely related than organisms that greatly differ in DNA or RNA structures.
Biology 2010 Student Edition
by Miller, Kenneth R.; Levine, Joseph S.
Published by
Prentice Hall
ISBN 10:
9780133669510
ISBN 13:
978-0-13366-951-0
Chapter 16, Darwin's Theory of Evolution - Assessment - 16.4 Evidence of Evolution - Understand Key Concepts - Page 477: 29
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