Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 19 - Cellular Mechanisms of Development - Review Questions - Apply: 3

Answer

B.

Work Step by Step

The AP and DV axes in Drosophila both are made using morphogen gradients, but in one case is is RNA and in the other it is protein, making B. correct. A., C., and D. each contradict one part of the correct explanation.
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