Principles of Life for the AP Course (2nd Edition)

Published by W. J. Freeman
ISBN 10: 1464156417
ISBN 13: 978-1-46415-641-0

Chapter 16 - Section 16.2 - Phylogeny Can Be Reconstructed from Traits of Organisms - Apply The Concept - Page 330: 4

Answer

DNA is the infecting agent that made the bacteria radioactive hence DNA is the genetic material, not the protein.

Work Step by Step

This conclusion can be derived because only DNA changes and become radioactive, not the protein which remains the same.
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