Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 21.5, Problem 1CC
Summary Introduction
To analyze: The phenomenon of horizontal gene transfer and its interference in the concept of monophyletic group.
Introduction:
Monophyletic group is a group of organisms that consists of all the descendants of a common ancestor. They tend to have almost similar genetic composition. Horizontal gene transfer is the phenomenon in which an organism incorporates genetic material from another organism without being the offspring of that organism. When horizontal gene transfer occurs, not all of the genes in a species were inherited from the common ancestor, this meddles the concept of monophyletic groups.
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Which of the following taxa are monophyletic, polyphyletic, and paraphyletic?
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Chapter 21 Solutions
Principles of Biology
Ch. 21.1 - Refer back to Figure 4.8. Which of the three...Ch. 21.1 - Prob. 1CCCh. 21.1 - Prob. 1TYKCh. 21.1 - Prob. 2TYKCh. 21.2 - Prob. 1CCCh. 21.2 - Prob. 1TYKCh. 21.2 - Prob. 2CCCh. 21.2 - Prob. 2TYKCh. 21.2 - Prob. 3TYKCh. 21.3 - What shared derived character is common to the...
Ch. 21.3 - Prob. 2CCCh. 21.3 - Prob. 1TYKCh. 21.3 - Prob. 2TYKCh. 21.4 - Prob. 1BCCh. 21.4 - Prob. 1CCCh. 21.4 - Prob. 1TYKCh. 21.4 - An analysis of the number of neutral genetic...Ch. 21.5 - Prob. 1CCCh. 21.5 - Which of the following is an example of horizontal...Ch. 21 - Prob. 1TYCh. 21 - Which of the following is the correct order of the...Ch. 21 - Which type of taxon consists of organisms with the...Ch. 21 - Prob. 4TYCh. 21 - Prob. 5TYCh. 21 - Prob. 6TYCh. 21 - Prob. 7TYCh. 21 - Prob. 8TYCh. 21 - The concept that the preferred hypothesis is (lie...Ch. 21 - Prob. 10TYCh. 21 - Prob. 1CCQCh. 21 - What is a molecular clock? How is it used in...Ch. 21 - Prob. 3CCQCh. 21 - Prob. 1CBQCh. 21 - Prob. 2CBQ
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- How many clades are represented in Figure 20?arrow_forwardHow do monophyletic, paraphyletic, and polyphyletic taxa differ? How do these differences affect the validity of such taxa for both evolutionary and cladistic taxonomies?arrow_forwardWhat are the similarities and difference between genealogical, morphological, and biological species concept?arrow_forward
- Are members of a clade similar because they share a common ancestor, or do they belong to the same clade because they are similar?arrow_forwardIs the shaded region monophyletic, paraphyletic, or polyphyletic?arrow_forwardWhat notion is common to the morphologicall species concept, the biological species concept and the phylogenetic species concept?arrow_forward
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