Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Textbook Question
Chapter 26, Problem 16TYK
Which of the following approaches would allow a biologist studying the evolution of four similar species of birds to choose the best phylogenetic tree from all possible phylogenies?
- a. Draw the simplest tree and choose that one.
- b. From a comparison of DNA sequences, determine the number of evolutionary events required for each tree and then choose the most parsimonious tree.
- c. Compare the entire genomes of each species; the two most similar genomes are the two species that are most closely related.
- d. Determine which species can interbreed; those that can interbreed evolved from a common ancestor most recently.
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The figure shows a phylogenetic tree of various members of the order Proboscidea, which includes modern elephants. Which of the following claims is best supported by the information in the figure ?
a.The mastodon and the Stegodon diverged from their common ancestor 22 million years ago.
b.The common ancestor of the African elephant and the mastodon is the Palaeomastodon.
c.The mammoth diverged from its most recent common ancestor with African elephants before the mastodon diverged from its most recent common ancestor with Stegodons.
d.The Asian and African elephants are the most closely related species shown on the tree.
According to the data, which two species in Table 3 are most closely related? Why do we think these two lineages diverged the shortest time ago?
Which species is most closely related to humans? Which is most distantly related to humans
To humans, alligators and crocodiles look very similar. However, which species difference in Table 3 comes closest to the difference between alligators and crocodiles? How can we explain this?
Which of the following is/are TRUE in phylogenetic analysis?
0000000
A. In a phylogram, the longer the branch length, the lesser genetic change.
B. A bootstrap value of 90-100 indicates a weakly supported clade.
C. Neighbor-Joining and Maximum Parsimony does not consider convergence as an influencing factor in creating an evolutionary tree.
D. Phylogenetic analysis treats each base of a sequence as a molecular character for analysis.
Both C and D are True statements.
Both B and Care True statements.
None. All of the statements are False.
Chapter 26 Solutions
Study Guide for Campbell Biology
Ch. 26 - a. In this hypothetical phylogenetic tree, which...Ch. 26 - What two complications may make it difficult to...Ch. 26 - Place the taxa (outgroup. A, B, C, and D) on the...Ch. 26 - Prob. 4IQCh. 26 - a. Give an example of genes that would be compared...Ch. 26 - Prob. 6IQCh. 26 - Prob. 7IQCh. 26 - Prob. 1SYKCh. 26 - Prob. 2SYKCh. 26 - Prob. 3SYK
Ch. 26 - Related families are grouped into the next-highest...Ch. 26 - Prob. 2TYKCh. 26 - Prob. 3TYKCh. 26 - Prob. 4TYKCh. 26 - Prob. 5TYKCh. 26 - Prob. 6TYKCh. 26 - Prob. 7TYKCh. 26 - Prob. 8TYKCh. 26 - A taxon such as the class Reptiliawhich includes...Ch. 26 - You wish to study evolutionary relationships among...Ch. 26 - Prob. 11TYKCh. 26 - Prob. 12TYKCh. 26 - Prob. 13TYKCh. 26 - Prob. 14TYKCh. 26 - Prob. 15TYKCh. 26 - Which of the following approaches would allow a...Ch. 26 - A comparative study of which of the following...Ch. 26 - Prob. 18TYKCh. 26 - Which of the following segments of DNA would...Ch. 26 - Which of the following is the best description of...Ch. 26 - Prob. 21TYK
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