CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
CAMPBELL BIOLOGY IN FOCUS-MOD.MASTERING
3rd Edition
ISBN: 9780135191811
Author: Urry
Publisher: PEARSON
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Chapter 20, Problem 2TYU

To apply parsimony to constructing a phylogenetic tree,

  1. A.    choose the tree that assumes all evolutionary changes are equally probable.
  2. B.     choose the tree In which the branch points are based on as many shared derived characters as possible.
  3. C.     choose the tree that represents the fewest evolutionary changes, in either DNA sequences or morphology.
  4. D.    choose the tree with the fewest branch points.
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What consequences does horizontal gene transfer pose for evolutionary biologists? a. It can pose difficulty in the reconstruction of phylogenetic trees, because it can obscure phylogenetic relationships.  b. It can pose physiological problems in some organisms, making it very hard to study them. c. It can pose difficulty in breeding between different individuals of the same species. d. Because it is transfer of genes between the same species, it can make individuals look very more similar than they actually are. e. All of the above.
A phylogenetic tree is different from a cladogram in that ... Group of answer choices A: it shows that all species are not related to a common ancestor, but each has a distinct archetype. B: it represents the time scale of evolution, including where extinct species fit in. C: it uses an outgroup to compare a small group of species that exhibit similar traits D: it is not based on genetic or morphological evidence.
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.
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Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License