Biology (11th Edition)

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

Chapter 53 - Animal Development - Review Questions - Synthesize: 2

Answer

Both the dog and the fruit fly have related, homolgous homeoboxes directing some of development. The difference is which particular structures (for a dog or for a fruit fly) are produced as a result of the action of those genes.

Work Step by Step

Review the text on the various kinds of genes which control development and just how widely they are shared--MADS genes, for instance, are seen in all major eukaryotic kingdoms.
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