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Reset Selection Mark for Review What's This? Part 4 of 7 - Phylogenetics
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4/12/13 6:34 PM 2013 Problem Set 2 on Evolution Lectures 4-6 Page 4 of 10 Part 4 of 7 - Phylogenetics You discover a new genus of fish with five species. In order to determine the phylogenetic relationships among these species, you examine 5 different characters in each of the five species, as well as in a more distantly-related outgroup. The outgroup has gray scales, no stripes, a short dorsal fin, a narrow body, and a preference for leafy hiding places. The other species, on the other hand, each have some combination of blue scales, stripes, a tall dorsal fin, a wide body, and a preference for rocky hiding places (each of which only evolved once in the genus), according to the following table: Which of the following trees best represents the phylogenetic relationships between the species according to the principle of parsimony? Attachments Question 1 of 5 4.0 Points Which of the following trees best represents the phylogenetic relationships between the species according to the principle of parsimony? A. A B. B C. C D. D E. E F. F Reset Selection Mark for Review What's This? Question 2 of 5 4.0 Points For the next three questions, assume that the most parsimonious tree above is correct. Answer the following based on the most parsimonious tree. Species 1 and 2 together form A. a monophyletic group
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4/12/13 6:34 PM 2013 Problem Set 2 on Evolution Lectures 4-6 Page 5 of 10 B. a paraphyletic group C. a synapomorphy D. a polytomy E. a clade F. None of the above Reset Selection Mark for Review What's This?
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