Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Chapter 20, Problem 17CTQ
Some organisms that appear very closely related on a phylogenetic tree may not actually be closely related. Why is this?
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What is the difference between a cladogram and a phylogenetic tree? Given a cladogram for a group of species, what additional interpretation is needed to obtain a phylogenetic tree?
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Why is it important for scientists to distinguish between homologous and analogous characteristics before building a Phylogenetic tree?
Chapter 20 Solutions
Biology 2e
Ch. 20 - Figure 20.6 At what levels are cats and dogs...Ch. 20 - Figure 20.10 Which animals in this figure belong...Ch. 20 - Figure 20.11 What is the largest clade in this...Ch. 20 - What is used to determine phylogeny? mutations DNA...Ch. 20 - What do scientists in the field of systematics...Ch. 20 - Which statement about the taxonomic classification...Ch. 20 - On a phylogenetic tree, which term refers to...Ch. 20 - Which statement about analogies is correct? They...Ch. 20 - What do scientists use to apply cladistics?...Ch. 20 - What is true about organisms that are a part of...
Ch. 20 - Why do scientists apply the concept of maximum...Ch. 20 - The transfer of genes by a mechanism not involving...Ch. 20 - Particles that transfer genetic material from one...Ch. 20 - What does the trunk of the classic phylogenetic...Ch. 20 - Which phylogenetic model proposes that all three...Ch. 20 - How does a phylogenetic tree relate to the passing...Ch. 20 - Some organisms that appear very closely related on...Ch. 20 - List the different levels of the taxonomic...Ch. 20 - Dolphins and fish have similar body shapes. Is...Ch. 20 - Why is it so important for scientists to...Ch. 20 - Describe maximum parsimony.Ch. 20 - Compare three different ways that eukaryotic cells...Ch. 20 - Describe how aphids acquired the ability to change...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why is it so important for scientists to distinguish between homologous and analogous characteristics before building phylogenetic trees?arrow_forwardWhy are paraphyletic groups considered as bad groups in a phylogenetic tree?arrow_forwardGiven a cladogram for a group of species, what additional interpretation is needed to obtain a phylogenetic tree?arrow_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_forwardWhat is the difference between a phylogenetic tree and a cladogram?What the difference between “homologous traits” and “analogous traits”?arrow_forwardWhat is the purpose of using an outgroup when reconstructing a phylogenetic tree? [at least mention 4 points]arrow_forward
- Does this phylogenetic tree represent the same evolutionary relationship between all the taxa? why or why not?arrow_forwardWhat is the purpose of using an “outgroup” when reconstructing a phylogenetic tree? Write 4 points at leastarrow_forwardA cladogram used in a comparison of morphology among taxa had equal length branches, but when looked at in a blast webpage using the given gene sequence, the branches all had different lengths. Why is that?arrow_forward
- What is the difference between a phylogenetic tree and a cladogram? What the difference between "homologous traits" and "analogous traits"? What is the difference between "ancestral traits" and "derived traits"?arrow_forwardFor the first phylogenetic tree, if we assume absolute time is NOT represented, can we say that the species in circle B are more closely related than the species in Circle A? For the second phylogenetic tree (if we hold the same assumptions), can we say that B and C are more closely related than A and C?arrow_forwardDo 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.arrow_forward
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