Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 25, Problem 10TYPSS
Summary Introduction
To review:
Using the given phylogenetic tree, determine the origin of the Plasmodium falciparum, if it originates from another strain of Plasmodium in humans, in chimpanzees, or in gorillas.
Introduction:
According to the phylogenetic tree given, Plasmodium falciparum originated from the Plasmodium in gorillas, as they share a common ancestry from the Plasmodium in gorillas. The phylogenetic tree that is to be used to determine the origin of Plasmodium is provided below.
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A 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?
What do the multiple branching points at the root of the eukaryotic phylogenetic tree indicate about the evolution of eukaryotes?
A. that unikonts are derived from the SAR clade
B. that Archaeplastids were the first eukaryotes
C. that fungi are more closely related to plants than animals
D. that eukaryotes are all descended from a common ancestor
Below is an example of a particular kind of phylogenetic tree called a chronogram. Chronoograms are named because the length of the branches represents different lengths of time. Nodes are represented by vertical lines, and branches with horizontal ones. They can be arranged horizontally, with the most recent evolutions on the right.
Given this information, the taxa that is most closely related to Dubautia ciliolata c. 529 (highlighted below) is _________________ (make sure to type exactly the same characters, including the numbers; do not italicize).
Chapter 25 Solutions
Biological Science (6th Edition)
Ch. 25 - 1. Choose the best definition of a fossil.
a. any...Ch. 25 - 2. CAUTION True or false? The absence of a trait...Ch. 25 - Which of the following best characterize an...Ch. 25 - Which of the following is an example of homoplasy?...Ch. 25 - 5. Why is parsimony a useful tool for assessing...Ch. 25 - Prob. 6TYUCh. 25 - Fossilization continues even today. If you wanted...Ch. 25 - Prob. 8TYUCh. 25 - 9. MODEL Use the data matrix below to draft a...Ch. 25 - Prob. 10TYPSS
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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?arrow_forwardThe figure shows a phylogenetic tree of various members of the order Proboscidea, which includes modern elephants. Which of the following claims is best supported by the information in the figure ? a.The mastodon and the Stegodon diverged from their common ancestor 22 million years ago. b.The common ancestor of the African elephant and the mastodon is the Palaeomastodon. c.The mammoth diverged from its most recent common ancestor with African elephants before the mastodon diverged from its most recent common ancestor with Stegodons. d.The Asian and African elephants are the most closely related species shown on the tree.arrow_forwardDraw a simpler version of the phylogenetic tree that just depicts the four supergroups of eukaryotes after viewing the image. Now imagine and sketch the tree as if the unikonts were the first eukaryotes to diverge from the rest of the eukaryotes.arrow_forward
- Why is molecular data for phylogenetic inference best analyzed with use of an explicit model of molecular evolution? A) This is true of morphological data, not molecular data, it is impossible to model changes in molecular sequence data because it is constantly evolving. B) Because molecular data is known to only experience random changes and is constantly evolving, a chaotic model of evolution can universally be applied to molecular sequence data for phylogenetic analysis. C) Because molecular data is known to experience non-random changes in terms of the likelihood of different types of mutations -- transitions vs. transversions, at different codon positions, which can be used to infer sequence evolution and relationship. D) None of the above.arrow_forwardn which situation would it make sense to use the phylogenetic species concept? When you are not able to collect data about how individuals in your study use their habitat, but you are able to collect reproductive data When you are able to collect data about how individuals in your study use their habitat, but you are unable to determine if they interbreed When you only have genetic data about each organism in your study When working with fossils from extinct organismsarrow_forwardWhen I first studied hominin evolution, they had found "Lucy", an Australopithecus afarensis, and everyone thought her species was an early ancestor of Homo sapien. The picture is much more complicated, with lots of hominins living in close proximity for millions of years...much different than our now singular species. Look at the phylogenetic tree and use it as a guide to briefly describe hominin lines in Africa up to Homo. Do not discuss Homo.Just discuss a sense that you generally can grasp what was going on in Africa with our Genus for 6 or 7 million years!arrow_forward
- For 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_forwardDolphins and fish have similar body shapes. Is this feature more likely a homologous or analogous trait? Why is it so important for scientists to distinguish between homologous and analogous characteristics before building phylogenetic trees?arrow_forwardWhy are Tarsiers difficult to place on the phylogenetic tree? A. Because they are genetically closer to Strepsirrhines, but they have many physical traits similar to Haplorrhines B. Because they are not similar physically to either Strepsirrhines or Haplorrhines C. Because they are genetically closer to Haplorrhines, but they have many physical traits similar to Strepsirrhines D. Because they are not similar genetically to either Strepsirrhines or Haplorrhinesarrow_forward
- This chapter shows a phylogenetic tree for the three domains of life, which is based on DNA sequence data for rRNA and other genes. Which of the following answers concerning the phylogenetic relationships found within this tree is incorrect? View Available Hint(s)for Part A Euryarcheotes are found in the Archaea Diatoms, Tubulinids, and Euglenozoans belong to the domain Eukarya Forams, Fungi, and Chlamydias belong to the domain Eukarya. Spirochetes belong to the domain Bacteria Ciliates, Red Algae, and Plants belong to the domain Eukarya.arrow_forwardShown above are three possible phylogenetic trees for species I, II and III reconstructed based on the 4-nucleotide DNA sequences given in the righthand table. In every tree, each hatchmark on a branch represents a single base-change event. The most parsimonious tree would be - A. Both X and Y. B. X. C. Y. D. Both Y and Z. E. Z.arrow_forwardWith two specific examples, explain why phylogenetics is a useful scientific tool for studying Organismal biology?arrow_forward
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Phylogenetic Mysteries: Crash Course Zoology #12; Author: CrashCourse;https://www.youtube.com/watch?v=cVaw7nF72Aw;License: Standard youtube license