Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 47.3, Problem 4CC
Summary Introduction
To explain: The expected result, when zone of polarizing activity (ZPA) is removed from a limb bud and then a bead dripped in sonic hedgehog is placed in the center of the limb bud.
Concept introduction: The limb bud development is determined by two regions – the apical ectodermal ridge (AER) and the zone of polarizing activity (ZPA). The AER region determines the growth of a limb along the proximal-distal axis. The ZPA region determines the growth of the limb along the anterior-posterior axis.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
As shown two types of buds. What are the two types and how do they differ?
a. What are the physical differences and similarities in the reproduction systems of plants and animals?
b. What is the difference of morphogenesis in plants and animals?
Direction: Explain the following in paragraph form consists of at least five sentences for each question.
1.What might be a disadvantage to temperature-dependent sex determination?
2.Compared to separate sexes and assuming self-fertilizing is not possible, what might be one advantage and one disadvantage to
hermaphroditism?
3. Stomates must be open for evaporation to occur. Going back to the last lesson, how plant transport and gas exchange happens?
+ Prepare answer
Chapter 47 Solutions
Campbell Biology
Ch. 47.1 - How does the fertilization envelope form in sea...Ch. 47.1 - Prob. 2CCCh. 47.1 - MAKE CONNECTIONS Review Figure 12.16 on cell...Ch. 47.2 - In the frog embryo, convergent extension elongates...Ch. 47.2 - WHAT IF? Predict what would happen if Ca2+ was...Ch. 47.2 - MAKE CONNECTIONS Unlike some other types of birth...Ch. 47.3 - Prob. 1CCCh. 47.3 - Prob. 2CCCh. 47.3 - Prob. 3CCCh. 47.3 - Prob. 4CC
Ch. 47 - What cell-surface event would likely fail if a...Ch. 47 - What are some functions of apoptosis in...Ch. 47 - Suppose you found two classes of mouse mutations,...Ch. 47 - Prob. 1TYUCh. 47 - Which of the following is common to the...Ch. 47 - The archenteron develops into a. the mesoderm. b....Ch. 47 - What structural adaptation in chickens allows them...Ch. 47 - Prob. 5TYUCh. 47 - In humans, identical twins are possible because a....Ch. 47 - Cells transplanted from the neural tube of a frog...Ch. 47 - DRAW IT Each blue circle in the figure below...Ch. 47 - EVOLUTION CONNECTION Evolution in insects and...Ch. 47 - Prob. 10TYUCh. 47 - Prob. 11TYUCh. 47 - Prob. 12TYUCh. 47 - SYNTHESIZE YOUR KNOWLEDGE Occasionally, two-headed...
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
- VISUALIZE Label the following diagram and explain what this diagram illustrates.arrow_forward. MAKE CONNECTIONS What type of feedback processis exemplified by the production of ethylene during fruitripening? Explain. (See Figure 1.10.)arrow_forwardESSAY: PLEASE EXPLAIN IN A SIMPLE WAY. (MINIMUM OF 250 WORDS AND MAXIMUM OF 500 WORDS) Is an imperfect flower also incomplete? Is an incomplete flower also imperfect? Explain your answer.arrow_forward
- d. Based on ABC model of floral development, this/these gene/genes controls/control the development of stamens in the third whorl of a flower. (A) A class gene (B) B + C class genes (C) A + B class genes (D) C class genearrow_forward(a) What is the mutant that helps us to understand the adaxial identity of leaf development and the laminar outgrowth? (b) What is the mutant phenotype? (c) Which kind of protein does this gene encode?arrow_forwardCan you clearly type the answers to the all the parts to this question please a) What is the role of the LEAFY gene in floral development? (b) What is the phenotype of the leafy mutant? (c) Most of the ABC program genes are directly regulated by the transcription factor LEAFY (LFY). Still, LFY is expressed broadly throughout the floral meristem when the discrete A, B, and C domains are established. Discuss how this single broadly expressed transcription factor can generate distinct domains of ABC gene expression. Feel free to use diagrams.arrow_forward
- Suitable hypothesis that will predict answers for the following: A) what is the rate of germinating peas versus non-germinating peas. B) what is the effect of temperature on germinating peas?arrow_forwardWhich of the following are the correct order of steps needed for guard cells to respond to ligth? Select one: O a. Light hits guard cells, guard cells actively pump potassium and chloride out, water follows the ions out(lower water potential), guard cells lose water and open O b. Light hits guard cells, guard cells actively pump potassium and chloride out, water follows the ions out(lower water potential), guard cells lose water and close O c. Light hits guard cells, guard cells actively pump protons out, protons escort chloride ions in, water follows the ions (lower water potential), guard cells become turgid and open O d. Light hits guard cells, guard cells actively pump protons in, water follows the protons (lower water potential and concentration gradient), guard cells become turgid and closearrow_forwardQuestion / Briefly explain how acetyl willow plant is separated from aspirin?arrow_forward
- A. What is double fertilization? B. What are the products of double fertilization? C. Explain the following quote “As an individual, the endosperm is unique as it has three ancestors and never leaves any descendants.” What are the three ancestors referred to in this quote? And why endosperm does not leave any descendants?arrow_forwardEXPERIMENT 4: INDUCTION OF CALLUS SOMATIC EMBRYOGENESIS OF HAPLOID PLANTS Objective: To prepare anther as a source of explant To induce callus somatic embryogenesis of haploid plants Procedure: Cut off the buds and sort them into 3 developmental stages based on length of buds Surface sterilize the buds in 70% ethanol for 2-3 minutes, making sure the entire bud is immersed in the alcohol. Drain off excess alcohol from the buds and aseptically excise the anthers from each bud. Remove the filaments and culture the anther on one of the agar media provided. Label the stage of development of the bud on each petri dish as the anthers are cultured. Seal the Petri dishes with parafilm. Incubate in the dark at 26 to 28ºC for 4 to 8 weeks or until small plants can be seen growing out of the anthers. Then transfer to diffuse light. Record the results of the experiment in table form and submit the report. Observation: The culture was contaminated after 8 weeks of incubation…arrow_forwardDiscuss Concepts Suppose a garden in your neighborhood is filled with red, white, and blue petunias. Explain the floral colors in terms of which wavelengths of light are absorbed and reflected by the petals.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
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)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning