Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 20.2, Problem 2CS
Development in Animals I: Pattern Formation
Core Skill: Connections Look ahead to Figure 24.15. How is the number of Hox genes related to the complexity of animal bodies?
Figure 24.15 Hox gene number and body complexity in different types of animals. Researchers speculate that the duplication of Hox genes and Hox gene clusters played a key role in the evolution of more complex body patterns in animals. A correlation is observed between increasing numbers of Hox genes and increasing complexity of body patterns. The Hox genes are divided into four groups, called anterior, group 3, central, and posterior, based on their relative similarities. Each group is represented with a different color in this figure.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
asap
What are some of the applications of animal reproduction and development in the real world?
5c) Do you believe that experiments might be useful in determining the adaptive function of the pecten, if it indeed serves an adaptive function? Outline a simple experiment to see whether the presence of a pecten in the bird eye is an adaptation.
18) At a high level, animals can be placed into evolutionary groupings based on their pattern of embryonic development. One of these patterns is called deuterostome development, where the opening called the ______ becomes the ______ and the embryonic cells exhibit _______ development.
Group of answer choices
gastrula, mouth, indeterminate
blastopore, anus, indeterminate
blastopore, mouth, determinate
gastrula, anus, determinate
blastopore, mouth, indeterminate
Chapter 20 Solutions
Biology
Ch. 20.1 - 20.1 General Themes in Development Concept Check:...Ch. 20.1 - Prob. 2CCCh. 20.1 - Prob. 1CSCh. 20.2 - Development in Animals I: Pattern Formation...Ch. 20.2 - Development in Animals I: Pattern Formation...Ch. 20.2 - Prob. 3CCCh. 20.2 - Core Skill: Modeling The goal of this modeling...Ch. 20.2 - Development in Animals I: Pattern Formation Core...Ch. 20.3 - Development in Animals II: Cell Differentiation...Ch. 20.3 - Development in Animals II: Cell Differentiation...
Ch. 20.3 - Development in Animals II: Cell Differentiation...Ch. 20.3 - Development in Animals II: Cell Differentiation...Ch. 20.3 - Development in Animals II: Cell Differentiation...Ch. 20.4 - Development in Plants Concept Check: Where are...Ch. 20.4 - Prob. 2CCCh. 20 - The process whereby a cells morphology and...Ch. 20 - Prob. 2TYCh. 20 - Positional information is important in determining...Ch. 20 - Morphogens are a. molecules that disrupt normal...Ch. 20 - Prob. 5TYCh. 20 - Arrange the following phases of pattern formation...Ch. 20 - Prob. 7TYCh. 20 - Which of the following genes do not play a role in...Ch. 20 - An embryonic stem cell that can give rise to any...Ch. 20 - Prob. 10TYCh. 20 - Prob. 1CQCh. 20 - The MyoD gene in mammals plays a role in muscle...Ch. 20 - Prob. 3CQCh. 20 - Prob. 1COQCh. 20 - Is it possible for a phenotypically normal female...
Knowledge Booster
Learn more about
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
- Test Your Understanding 8.VISUALIZE Draw a simple cladogram illustrating the evolutionary relationships among extant mammals (marsupials, eutherians, and monotremes). Include the following characters in your cladogram: well-developed placenta, vivipary, endothermy, marsupium, hair.arrow_forwardINTERPRET DATA Compare the two graphs in Figure 1-17. What information does the second graph illustrate? What possible explanation can you give for the differences shown in the two graphs? (a) Number of chimpanzees who successfully employed specific method of tool use. (b) Number of chimpanzees who successfully employed learned method of tool use two months later. Figure 1-17 An experiment testing learning in chimpanzee populations In the photo, wild chimpanzees are shown observing a member of their group using a tool.arrow_forwardHow does developmental biology provide evidence of a common ancestry for vertebrates as diverse as reptiles, birds, pigs, and humans?arrow_forward
- 4d. What was the key evolutionary adaptation that sparked a wide range of adaptations associated with capturing and eating prey, avoiding being captured, attracting mates, caring for young and migrating to new habitats?arrow_forwardQ112: In the film, First Steps, a fossil was found named Selam. Briefly answer the following How do we know how long ago s/he lived? How old was Selam when s/he died? What is so important about this particular fossil find? Note: this is the film ? link ? ? https://youtu.be/fzfSr8qjc0Qarrow_forwardWhat are 5 examples of physiological adaptation in mammals (Note:Pls. specify the name of the mammal and its adaptation)? How does this adaptation lead to survival and reproductive success?arrow_forward
- 11.What does Molly possess that most humans do not? 12.Where are fish gonads located? 13.What is Sonic Hedgehog responsible for? 14.How many fingers do people in the Hubbard family have? 15.How far back can we trace the Sonic Hedgehog gene? 16.What does the name Tiktaalik mean? 17.Who was the first to predict that an animal like Tiktaalik would exist? 18.What features does Tiktaalik have that fish typically do not? 19.What type of exercise could Tiktaalik do that other fish cannot? 20.What is the piece of anatomy that changed the world?arrow_forwardReview the stages of early development in animals. How are these stages similar in the animals you have studied? How do they differ? Complete Table 25.3. Thank youarrow_forwardPERFORMANCE TASK: 1. Go online. Choose a group of organisms you are interested to work with (e.g. invertebrates); 2. In tabular form, list all the characters. Evaluate the characters (whether primitive or derived). 3. Remember that in building your cladogram, use only shared derived characters. 4. Construct your own cladogram.arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Mechanisms of Genetic Change or Evolution; Author: Scientist Cindy;https://www.youtube.com/watch?v=5FE8WvGzS4Q;License: Standard Youtube License