Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Textbook Question
Chapter 26, Problem 26.4CR
When reconstructing phylogenies, is it more useful to compare orthologous or paralogous genes? Explain.
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Chapter 26 Solutions
Campbell Biology
Ch. 26.1 - Prob. 1CCCh. 26.1 - Prob. 2CCCh. 26.1 - DRAW IT The bear family (Ursidae) is more closety...Ch. 26.2 - Decide whether each of the following pairs of...Ch. 26.2 - Prob. 2CCCh. 26.3 - Prob. 1CCCh. 26.3 - Prob. 2CCCh. 26.3 - WHAT IF? Draw a phylogenetic tree that includes...Ch. 26.4 - Explain how comparing proteins of two species can...Ch. 26.4 - WHAT IF? Suppose gene A is orthologous in species...
Ch. 26.4 - Prob. 3CCCh. 26.5 - What is a molecular clock? What assumption...Ch. 26.5 - Prob. 2CCCh. 26.6 - Why is the kingdom Monera no longer considered a...Ch. 26.6 - Prob. 2CCCh. 26.6 - MAKE CONNECTIONS Explain how the origin of...Ch. 26 - Humans and chimpanzees are sister species. Explain...Ch. 26 - Why is it necessary to distinguish homology from...Ch. 26 - Prob. 26.3CRCh. 26 - When reconstructing phylogenies, is it more useful...Ch. 26 - Prob. 26.5CRCh. 26 - Prob. 26.6CRCh. 26 - In a comparison of birds and mammals, the...Ch. 26 - To appiy parsimony to constructing a phylogenetic...Ch. 26 - VISUAL SKILLS In Figure 26.4, which similarly...Ch. 26 - Three living species X, Y, and Z share a common...Ch. 26 - Prob. 5TYUCh. 26 - If you were using cladistics to build a...Ch. 26 - VISUAL SKILLS The relative lengths of the frog and...Ch. 26 - EVOLUTION CONNECTION Darwin suggested looking at a...Ch. 26 - SCIENTIFIC INQUIRY DRAW IT (a) Draw a...Ch. 26 - WRITE ABOUT A THEME: INFORMATION In a Short essay...Ch. 26 - SYNTHESIZE YOUR KNOWLEDGE This West Indian manatee...
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- Why is it necessary to distinguish homology from analogy to infer phylogeny?arrow_forwardReferring to the phylogeny below, which trait is the most ancestral? which trait is shared by species 4 and 3 but not 2?arrow_forwardDescribe the process we use to infer the phylogenetic relationships of a set of living organisms.arrow_forward
- What are the ORDER/FAMILYs under Major Cubozoan Taxa? Give their characterictics, distribution, and give 2 example species each order/family.arrow_forwardIs it the case that a phylogeny based on a single gene sequence is usually the same as a phylogeny based on multiple gene sequences? Which method is more likely to reflect the true evolutionary history of the in group? Why?arrow_forwardWhen constructing phylogenetic trees, what is the purpose of applying maximum parsimony? Parsimony allows the researcher to "root" the tree. For trees based on morphology, the most parsimonious tree requires the maximum evolutionary events. The outgroup roots the tree, allowing the principle of parsimony to be applied. For trees based on morphology, the most parsimonious is the one that uses the simplest explanation of evolutionary events.arrow_forward
- Given a cladogram for a group of species, what additional interpretation is needed to obtain a phylogenetic tree?arrow_forwardExplain how phylogenetic trees are interpreted and created. Explain what types of traitsare used and some of the difficulties associated with reconstructing phylogenetichistories.arrow_forwardWhat is the purpose of using an “outgroup” when reconstructing a phylogenetic tree? Write 4 points at leastarrow_forward
- Based on the past activities about constructing of phylogenetic trees, how do you distinguish characteristics between primitive and derived characteristics? provide and example to your answerarrow_forwardPlace the homologous characteristic that arose in each branch of the phylogenetic tree. Not every characteristic will be placed. Which characteristic is analogous between birds and bats?arrow_forwardWhy do biologists care about phylogenies?arrow_forward
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