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: 5

Answer

C.

Work Step by Step

The AP axis is such a critical aspect of development in Drosophila that its loss would lead to catastrophic problems for the embryo, which would die (C.) A. and B. are both wrong since such a loss would affect both embryo and adult, if the latter even appeared, and D. is incorrect since the kind of change it describes is homeosis, which occurs with much later-acting genes which have much less severe effects.
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