What Is Life? A Guide to Biology with Physiology
What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 12, Problem 4SA
Summary Introduction

To review:

Apart from relationships among organisms, what else can be understood using phylogenetic trees.

Introduction:

A phylogenetic tree is a tree-like representation of organisms, to show how they are related to one another and whether one evolved from the other.

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Examine the following phylogenetic tree illustrated in Figure shown in the picture. In general, what does a phylogenetic tree illustrate?  How do you compare the relationships of organisms BB, CC, and DD?
a) What is a phylogenetic tree? b) What is a branch point? c) What are sister taxa? d) What is a ‘rooted’ phylogenetic tree?
Do you find it easy to interpret phylogenetic trees? What aspects are the most challenging or what aspects of the tree can be easily misinterpreted? What strategies can students use to correct or avoid these common misinterpretations? Do you consider phylogenetic trees to be reliable indicators of evolutionary relationships? Include a reference.
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