Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 25, Problem 15TYK
Summary Introduction
Introduction: Evolution is the process of modification in the characteristics of the various types of an organism over successive generations. The changes in the
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Which of the following statements is FALSE?
a. Only vertebrates possess HOX genes.
b. HOX genes are transcription factors.
c. Hox genes are very highly conserved in the genome location and function among organims.
d. HOX genes are activated in a very predictable pattern.
The Brachyury and Tbx5 in vertebrates and the Ap3 gene in flowering plants
a. are examples of Hox genes.
b. are examples of co-opting a gene for a new function.
c. are homologues for determining the body plan of eukaryotes.
d. help regulate the formation of appendages.
The bones in the front fins of whales and the bones in the human arm evolved from a common ancestor but carry out different functions. This is an example of
A. homologous structures.
B. vestigial structures.
C. analogous structures.
D. embryonic structures.
Chapter 25 Solutions
Study Guide for Campbell Biology
Ch. 25 - Why do we say that, for life to have begun, the...Ch. 25 - Prob. 2IQCh. 25 - Prob. 3IQCh. 25 - Prob. 4IQCh. 25 - Prob. 5IQCh. 25 - a. Mammals originated 180 mya but did not change...Ch. 25 - Prob. 7IQCh. 25 - a. According to the model of species selection,...Ch. 25 - Prob. 1SYKCh. 25 - Label the eons, eras, and key events shown on the...
Ch. 25 - Describe three major processes that have...Ch. 25 - Prob. 4SYKCh. 25 - The primitive atmosphere of Earth may have favored...Ch. 25 - Prob. 2TYKCh. 25 - Prob. 3TYKCh. 25 - The half-life of carbon-14 is 5,730 years. A...Ch. 25 - Prob. 5TYKCh. 25 - Prob. 6TYKCh. 25 - Prob. 7TYKCh. 25 - Look back at the Geologic Record in Table 25.1....Ch. 25 - Prob. 9TYKCh. 25 - According to the endosymbiont theory, a. the first...Ch. 25 - Prob. 11TYKCh. 25 - Prob. 12TYKCh. 25 - Prob. 13TYKCh. 25 - Prob. 14TYKCh. 25 - Prob. 15TYKCh. 25 - Prob. 16TYKCh. 25 - Prob. 17TYKCh. 25 - What is meant by the concept of species selection?...
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- Evolutionary theory predicts that species are related, not independent. Four of the following examples provide support for this prediction, but one is irrelevant. Which of examples listed below does not support the claim that species are related? A. Many dinosaurs and other organisms went extinct following a huge asteroid impact at the end of the Cretaceous. B. Before synthetic insulin was available, diabetics used injections of purified pig insulin to manage their disease. C. The endostyle of lancelets (invertebrate chordates) and the thyroid gland of vertebrates develop similarly, and both produce iodinated proteins. D. All prokaryotes and eukaryotes use DNA to carry their genetic information. E. Ground squirrel species found on the North and South sides of the Grand Canyon are very similar to each other.arrow_forwardThe following diagram is of the blastopore stage of embryonic development. Based on the information in the diagram, which of the following statements is correct a. Most animals exhibit this pattern of development. b. It would have formed by spiralian cleavage. c. It would exhibit determinate development. d. All of the choices are correct.arrow_forwardScientists compare the structures of a chicken embryo and a human embryo at the same stage of development. They find that both vertebrates have similar shapes and structures, including the presence of gill slits and tails. How is this comparison of the embryos used as supporting evidence of evolution? A. The similarities suggest that chickens and humans are the direct descendants of modern day fish with tails and gill slits. B. The similarities suggest that vertebrates passthrough each of the adult stages of their evoluntionary history as they develop. C. The similarities suggest that vertebrates can undergo genetic changes during development that lead to the evolution of new species D. The similarities suggest that chickens and humans descend from ancestors with genes that code for the development of tails and gill slitsarrow_forward
- Researchers suggest that an increase in the number of Hox genesa. leads to reproductive isolation in all cases.b. could explain the evolution of color vision.c. allows for the evolution of more complex body patternsin animals.d. results in the decrease in the number of body segmentsin insects.e. does all of the above.arrow_forwardAn organism has a relatively large number of Hox genes in its genome. Which of the following is true of this organism? Select one: А. Its Hox genes cooperate to bring about sexual maturity at the proper stage of development. В. Most of its Hox genes owe their existence to gene fusion events. С. The organism must have multiple paired appendages along the length of its body. D. These genes are fundamental, and are expressed in all cells of the organism. E. The organism has the genetic potential to have a relatively complex anatomy.arrow_forwardWhich of the following is NOT a derived trait in primates? A. Claws B. Opposable fingers/toes C. Postorbital bar/plate D. Trichromacyarrow_forward
- A. According to Gould and Vrba (1982), when the original cooling function of insect appendages was changed to flying, this is an example of a. inheritance. b. exaptation. c. apatation. d. adaptation. B. When primates first evolved away from their mammalian ancestors, they a. developed a larger and more complex brain. b. increased their reliance on the sense of smell. c. increased the number of canines (for meat-eating). d. all of the abovearrow_forwardDevelopment of an animal is controlled by the genes that are expressed during development. What roles have been proposed for Hox genes in the evolution and morphology of animal species? Group of answer choices 1. Variation in the Hox genes may have spawned the formation of many new body plans. 2. All of these descriptions are correct. 3. The number and arrangement of Hox genes varies among different types of animals. 4. Increases in the number of Hox genes may have led to greater complexity in body structure.arrow_forwardAn evolutionary model of animal development explains how, O a.new genetic lines are produced less by modification than by unique mutation. O b.somites form as blocks of genes in cells randomly distributed throughout the body. OC.homeotic genes are found only in fruit flies, where they are responsible for odd placement of appendages. d. homeotic genes are not universal among animals. O e.animal body plans are constrained by existing structures in ancestral organisms.arrow_forward
- Match the descriptions/examples types of evidence that support evolution. 1.Biogeography 2.Comparative Embryology 3.Comparative Anatomy 4.Molecular Biology A.Organisms in New Zealand are more similar to organisms in Australia than they are to organisms in North America . B.The embryos of many species have gill pouches even though the gill pouches are not used in these species . C.The forelimbs of the human ,cat ,whale and bat have many similar bones despite the fact that the forelimbs have different functions . D.The Human genome is 98% identical to the Chimpanzee genome .arrow_forwardVertebrates Gnathostomes Tetrapods Amniotes Mammals Phylogeny based on morphology Amphioxus Lampreys Sharks Ray-finned fishes Coelacanth Lungfishes Amphibians Monotremes Marsupials Placental mammals Turtles Tuatara Lizards Snakes Turtles Crocodiles Birds Phylogeny based on DNA sequencearrow_forwardThe biological variation in living primates provides models for understanding A. Morphology, behavior, adaptation in the evolutionary past, and alternative forms of classification B. Alternative forms of classification C. The uses of anatomical and genetic evidence D. Morphology, behavior, and adaptation in the evolutionary pastarrow_forward
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