Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 1.1, Problem 4R
Summary Introduction
To review:
The information that biologist uses to create a phylogenetic tree.
Introduction:
A phylogenetic tree is a branching diagram or a tree that shows the evolutionary relationship among organisms. The diagram shows the divergence of a different group of the organism from each other and from their common ancestor.
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Do you find it easy to interpret phylogenetic trees?
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Include a reference.
Compare phylogenetic trees created using DNA data with phylogenetic trees created using chromosomal banding patterns. Which technique do you think is more valuable and why?
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Chapter 1 Solutions
Life: The Science of Biology
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- What is Phylogeny? Explain the importance of Phylogeny ?arrow_forwardWhat does the term "Root system" mean in technical language to biologists? What are the similarities and differences between the everyday and technical meanings and uses of the term?arrow_forwardWithin the field of phylogenetics, what does a “bootstrap value” represent? (write/make 3 points for this question)arrow_forward
- Should more weight should be given to genetic data or to information derived from comparative anatomy (phenotypes) in regard to taxonomic classification?arrow_forwardIn what way do systematists use shared derived characters in their work?arrow_forwardPhylogenetic trees are used to show the evolutionary relationships among various biological species and are usually based upon shared derived characters. In constructing phylogenetic trees, it is useful to first draw up a character table to show the presence or absence of characters among the various groups of organisms being studied. a. Draw up a character table based upon the following shared derived characters of land plants: flowers, seeds, vascular tissues, and dependent embryos. Your character table must include the names/descriptions of the plant groups that are being characterized. b. Construct a phylogenetic tree based on this data.arrow_forward
- What is the main rule used to define a species in biology?arrow_forwardBeyond the Biological sciences, can other disciplines utilize the methods of phylogenetic systematics? please explainarrow_forwardWhat is the purpose of using an “outgroup” when reconstructing a phylogenetic tree? (Write 4 points)arrow_forward
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