Campbell Biology (10th Edition)

Published by Pearson
ISBN 10: 0321775651
ISBN 13: 978-0-32177-565-8

Chapter 21 - Test Your Understanding - Level 2 - Application/Analysis: 4

Answer

a) The C, G, R sequences are 1, 3, and 5 b) See image c) The O sequence is line 2 d) See image e) We can conclude that the M and C, G, R species are more closely related in the FOXP2 protein sequence than the H and C, G, R species.
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Work Step by Step

We must compare each amino acid in each of the sequences and follow the textbook's instructions in order to answer the question. We will identify the lines as this: 1. C, G, R 2. O 3. C, G, R 4. H 5. C, G, R 6. M To answer question e, we must first see that the human and C, G, R sequences differ by 2 amino acids while the M and C, G, R sequences differ by only one amino acid. Therefore we can assume that the DNA instructions for this protein are more similar between the M and C, G, R species than they are between the H and C, G, R species. Therefore, the M and C, G, R species may be more closely related than the H and C, G, R species.
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