BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
12th Edition
ISBN: 9781264058167
Author: Raven
Publisher: MCG CUSTOM
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Chapter 23, Problem 2IQ
Summary Introduction
To identify: The presence of wings in birds and bats based on the phylogeny given below.
Introduction: The study of relationship and interaction between organism as well as their evolutionary changes and development is known as phylogeny. The evolutionary changes lead to the correlation between organisms with constant rate and direction.
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Students have asked these similar questions
A phylogeny of 5 species of birds is shown below with values for three different
phenotypic traits for each species shown in the rows above (e.g., species A has a
wide, long beak and red tail, while species C has a narrow, very long beak and a
green tail). DNA sequencing of tissue samples found buried in a freezer confirms that
an extremely rare and reclusive species (D) is a sister species of E, but preserved
samples of entire individuals of species D have been lost, the original collector of the
samples has passed away, and no individuals of species D have subsequently been
seen in the wild. In other words, we have no idea what species D looks like.
Employing the principle of parsimony, which of the following conclusions is MOST
appropriate for the likely values of these traits in species D?
Beak width:
wide
wide
??
narrow
narrow
Beak length:
long
long
??
long
very long
Tail colour:
red
blue
??
green
green
A
E
a) wide beak, very long beak, green tail
b) narrow beak, long beak, all…
A 2015 article in Nature has summarized the early history of jawed vertebrates using highlights from recent discoveries and how they have changed our understanding of vertebrate evolution.
https://www.sciencedaily.com/releases/2014/04/140416133336.htm
Question: Given these recent discoveries, how should the cladogram below change? Describe it. It will likely be helpful to reference a synapomorphy noted on the cladogram.
Referring to the phylogenetic tree shown above, answer the following questions:
1. How many OTUs are included in the phylogenetic analysis?
2. How many clades are there?
3. What is an autapomorphic trait of the domestic cat? Explain why?
4. What is the shared derived trait (synapomorphy) in the Family Felidae? Explain why?
Chapter 23 Solutions
BIOLOGY(LL)-W/ACCESS CODE >CUSTOM<
Ch. 23.1 - Prob. 1LOCh. 23.1 - Prob. 2LOCh. 23.2 - Prob. 1LOCh. 23.2 - Prob. 2LOCh. 23.2 - Demonstrate how a cladogram is constructed.Ch. 23.3 - Explain the taxonomic classification system.Ch. 23.3 - Prob. 2LOCh. 23.3 - Prob. 3LOCh. 23.4 - Prob. 1LOCh. 23.4 - Prob. 2LO
Ch. 23.4 - Prob. 3LOCh. 23.5 - Prob. 1LOCh. 23 - Construct a data matrix like the one in figure...Ch. 23 - Prob. 1IQCh. 23 - Prob. 2IQCh. 23 - Prob. 3IQCh. 23 - Prob. 4IQCh. 23 - Overall similarity of phenotypes may not always...Ch. 23 - a. is based on overall similarity of phenotypes....Ch. 23 - The principle of parsimony a. helps evolutionary...Ch. 23 - Parsimony suggests that parental care in birds,...Ch. 23 - The forelimb of a bird and the forelimb of a...Ch. 23 - In order to determine polarity for different...Ch. 23 - In a paraphyletic group a. all species are more...Ch. 23 - A paraphyletic group includes a. an ancestor and...Ch. 23 - Prob. 9UCh. 23 - A taxonomic group that contains species that have...Ch. 23 - Rapid rates of character change relative to the...Ch. 23 - Species recognized by the phylogenetic species...Ch. 23 - Prob. 1SCh. 23 - Identifying outgroups is a central component of...Ch. 23 - As noted in your reading, cladistics is a widely...Ch. 23 - Across many species of limpets, loss of larval...Ch. 23 - Birds, pterosaurs (a type of flying reptile that...Ch. 23 - AID:1825 | 10/04/2018 6. In what sense does the...
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- How, specifically, is the concept of ALLOMETRY relevant to the phylogenetic position of Homo floresiensis? Because if allometry explains the anatomy of Homo floresiensis then we can conclude that it is not separate species but instead a member of our species. Although most mammals on islands go through a process of getting smaller, Homo floresiensis evolved from a smaller ancestor to be bigger, meaning that allometry is an important factor. Mutations in the allometry allele are associated with many of the characteristics of Homo floresiensis. Because Homo floresiensis is so much smaller than other members of the genus Homo, it is important to determine how shape changes associated with smaller size impacted the species. Because Homo floresiensis had both small- and large-bodied forms, variation within the species is in large part dictated by allometry.arrow_forwardThe Manx cat is in the domestic cat group, and the bobcat is in the lynx group. Both have a trait in common: short, stubby tails. According to the phylogeny, which is the most parsimonious explanation for this common trait in these two species of cat?arrow_forwardWhat is the common ancestor of the Galapagos finches? What are the thirteen Galapagos finches? What characteristics make each of the thirteen finches a distinct species? How is each finch isolated from the others? What habitat does each finch live?arrow_forward
- *Each number (1.1, 2.1, etc) represents a character/synapomorphy. How many character changes are there in the cladogram? Are there any unexpected or unusual result in the cladogram?arrow_forwardGiven the distribution of Hox genes among animals, what would you predict about the number and type of Hox genes in the common ancestor of all animals?arrow_forwardCan convergent (or parallel) evolution of similar morphology in two different lineages involve DNA sequence evolution in different parts of the same developmental gene? Explain how.arrow_forward
- Based on this matrix, is my cladogram correctly done? 1.a) What species on the cladogram are endothermic (fully endothermic species only=those that maintain their body temperature only with their metabolism = not sharks for instance)? 1.b) Considering the location and relationship of endotherms on the cladogram, what type of character (homologous, homoplasy: convergence or reversal) do you think endothermy is? try to use specific terminology: character, homologous characters, nom homologous characters, character states (or evolutionary stages of a character), ancestral (plesiomorphic), derived (apomorphic), homoplasy, convergence, reversal....arrow_forwardWhich node, 1-8, represents the most recent common ancestor of the Gray Wolf and the Domestic dog? Which node represents the most recent common ancestor of the Domestic Dog and the Red Fox? Which node represents the most recent common ancestor of the Coyote and the Swift Fox? Which node represents the most recent common ancestor of the Maned wolf and the Gray wolf?arrow_forwardIn the following cladogram species A, B, C, and the root of the tree together represent what sort of group?arrow_forward
- A study inferred a maximum likelihood phylogenetic tree based on sequence data from a specific gene. Numbers represent bootstrap support values for each clade. Based on the study's findings, how certain should we be that marsupials are sister to placental mammals, rather than monotremes? What number is used to represent this certainty, and how was it calculated?arrow_forwardWhich of the following best explains why coalescent-based phylogenetic inference is important in the age of phylogenomics? A) Coalescent-based methods directly model gene tree histories independently to infer the species tree in a summary-based manner, which is important for phylogenomic analysis were hundreds to thousands of gene histories are analyzed. B) Coalescent-based methods have the most advanced evolutionary models of molecular evolution, which is important for phylogenomic analysis were hundreds to thousands of gene histories are analyzed. C) Coalescent-based methods are no more important than other types of phylogenetic inference, even for phylogenomic analyses. D) None of the above.arrow_forwardIt is possible for two different genes to imply different phylogenetic relationships among a group of species. What are the possible reasons for this? If there is only one true history of formation of these species, what might we do in order to determine which (if either) gene accurately portrays that history? Is it possible for both phylogenetic trees to be accurate even if there has been only one history of species divergence?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