Biology (11th Edition)

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

Chapter 25 - Evolution of Development - Review Questions - Understand: 5

Answer

B.

Work Step by Step

All of these genes have evolved beyond their original function (B.). A. is wrong since these are not all Hox genes, and D. is wrong since not all make appendages (Brachyury doesn't). C. is incorrect since these genes are not homologous with one another, coming from different gene families.
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