EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
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Chapter 25, Problem 3CQ
Summary Introduction
To predict: The example where genes control development and play important role in evolution of different species.
Introduction: The Hox genes are homeotic genes that are present in all animals and play a significant role in development. These genes are expressed along the anteroposterior axis during the development of the embryo.
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Chapter 25 Solutions
EBK BIOLOGY
Ch. 25.1 - Can you think of another example of two different...Ch. 25.1 - Prob. 1BCCh. 25.1 - Is temporal isolation an example of a prezygotic...Ch. 25.1 - Prob. 3CCCh. 25.2 - Prob. 1BCCh. 25.2 - Prob. 1EQCh. 25.2 - Prob. 2EQCh. 25.2 - Prob. 3EQCh. 25.2 - Prob. 1CCCh. 25.2 - Prob. 2CC
Ch. 25.4 - Evo-Devo: Evolutionary Developmental Biology...Ch. 25.4 - Prob. 2CCCh. 25.4 - Prob. 1BCCh. 25.4 - Prob. 3CCCh. 25 - Macroevolution refers to evolutionary changes that...Ch. 25 - Prob. 2TYCh. 25 - Prob. 3TYCh. 25 - Prob. 4TYCh. 25 - Prob. 5TYCh. 25 - Prob. 6TYCh. 25 - Prob. 7TYCh. 25 - Prob. 8TYCh. 25 - Prob. 9TYCh. 25 - Prob. 10TYCh. 25 - What is the key difference between prezygotic and...Ch. 25 - What are the key differences between gradualism...Ch. 25 - Prob. 3CQCh. 25 - Prob. 1COQCh. 25 - Discuss the type of speciation (allopatric or...
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- EVOLUTION LINK What is the common ground between evolutionary biologists and developmental biologists who have adopted the perspective known as Evo Devo?arrow_forwardMany species look similar as embryos. What causes them to appear different as adults? Why does the study of development give insights into evolutionary relationships?arrow_forwardWhat is a gene? Why are regulatory genes important to the evolutionary process? What is a mutation as defined in this course and readings. Are the end results of a mutation always "good" or always "bad"? Or is a mutation perhaps neither always good or always bad and could be "neutral or no effect" or "adaptive" in some situations? Does it depend on the gene, amino acid, protein, and case-by-case scenario? What genetic evidence suggests that humans are a part of a biological continuum with all life forms. Does the number of genes in a biological organism correlate, predict, or denote the complexity of the organism? Does the number of chromosomes in a biological organism correlate, predict, or denote the complexity of the organism?arrow_forward
- INTERPRET DATA Which of the primates in Figure 18-18 is the most distantly related to humans? Explain your answer. Figure 18-18 Differences in DNA nucleotide sequences as evidence of evolutionary relationships Comparing the same gene in different organisms provides a window into evolution. Here the differences in the non-protein-coding region of the -globin gene are compared between humans and other primates. Evolutionary biologists are rapidly expanding such studies from comparing one or several genes to comparing entire genomes.arrow_forwardDiscuss the significance of mutations and explain the role of the environment in the evolutionary process. (Hint: Consider Lenski's study and what is demonstrated. Do not re-tell Lenski’s study)arrow_forwardAnswer the following: More recently evolved organisms have modified the stages of embryological development. Would you expect early or late stages to be modified the most? Why? The basic stages of embryological development are remarkably similar for a wide range of organisms. How would you explain such consistency? As cells invaginate and move about, do they “know” where they are? If not, how is movement controlled? If so, how do they perceive their position. Is parental care of a species a factor that affects embryological development? If so, how?arrow_forward
- DNA sequences called homeoboxes help homeotic genes in animals direct development. Given that they are common to flies and mice, explain why these animals are so different.arrow_forwardThe sequence of genes in a hypothetical animal cell is normally A-B-C-D. This results in normal development. Due to a mutation, the genes change position (A-C-D-B) resulting in abnormal development. This research was originally conducted and verified by which biologist?arrow_forwardDiscuss the two principles on which evolution is based.arrow_forward
- Which of the following best explains the number of similarities between the amino acid sequences of the Drosophila Hedgehog protein and the Chicken Indian Hedgehog protein? O A. The Drosophila hedgehog gene evolved from hedgehogs, which are distantly related to birds. O B. Both genes evolved from a gene present in the last common ancestor of Drosphila and chickens, and the number of differences reflects the amount of time that has elapsed during the evolution of these two lineages. a During the evolution of Drosophila and chickens, a hedgehog like gene arose independently in each lineage, then the gene that arose in chickens diversified. A These genes are unrelated, and the fact that they are similar is only because the proteins need to have similar biochemical properties. They are unrelated because chickens don't have segments and Drosophila larvae don't have limb buds.arrow_forwardWhy are the similarities among organisms during early development evidence for evolution? Give an example.arrow_forwardExplain well with reason. Asaparrow_forward
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