PEARSON ETEXT FOR CAMPBELL BIOLOGY
12th Edition
ISBN: 9780135988046
Author: Urry
Publisher: PEARSON
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Chapter 47, Problem 11TYU
Summary Introduction
To discuss: The merits and demerits of cloning of animals by scientists using knowledge of embryonic development.
Introduction:
Cloning is a process by which two identical organisms can be made with exact DNA copies.
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True/False: 24) Studies of invertebrate and vertebrate development suggest that there is a universal body plan for bilateral animal development.Answer: 25) One of the four overlapping stages in animal development is apoptosisAnswer: 26) The primary interest of genetic research into stem cells is the desire to be able to clone a human being.Answer: 27) Unipotent cells may differentiate into all other cell types of the body.Answer: 28) The reduction of pollutants in the environment by microorganisms is called biodegradation.Answer: 29) A transgenic organism has recombinant DNA integrated into its genome.Answer: 30) An organism that can be regenerated by somatic cells is called multipotent.Answer:
Using the space below please address the items below as they relate to human embryology;
a) discuss when the germ layers of human development begin to form, explain how each originates, explain what each will differentiate into, and what happens to each layer immediately after formation
b) distinguish the developmental differences between a 20 day old embryo and a 4wk embryo in humans.
Chapter 47 Solutions
PEARSON ETEXT FOR 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...
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- People could observe the development of an embryo before they had the tools to see cells and parts of cells such as DNA. How they explained the development from embryo to organism and how would the discovery of DNA and how DNA "works" have changed how scientists could research development?arrow_forwardIs it moral to do stem cell research on embryos? Cite moral and ethical reasons, can you give an alternative?arrow_forwardIn some ways, human development is like that of a sea urchin, in others more like the of a frog, and in other ways more like that of a bird, and even more like that of a dog. Explain in a few sentences how this is true for each of these different animals.arrow_forward
- Answer 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_forwardhttps://nj.pbslearningmedia.org/resource/tdc02.sci.life.stru.different/cell-differentiation/#.XhYcbf5KjBI How would you explain the similarities among bird, mammal, and reptile embryos at the early stages of development, and what directs the sequence of events during embryonic development?arrow_forwardTopic: Developmental Biology Give an analogy on how the concepts of determination and differentiation are seen in personal events in your life.arrow_forward
- What is one of the ethical issues related to using embryonic stem cells? O A. Embryonic cells are donated. B. Embryonic cells need to be revived from dead tissue. O C. Embryonic cells are harvested from young embryos. O D. Embryonic cells are unfertilized and become fertilized through in vitro fertilization.arrow_forwardAddress the items below as they relate to human embryology; a) discuss when the germ layers of human development begin to form, explain how each originates, explain what each will differentiate into, and what happens to each layer immediately after formation b) distinguish the developmental differences between a 20 day old embryo and a 4wk embryo in humans.arrow_forwardWhat are the concepts of the following? 1, developmental anatomy 2, embryology 3,pre-embryology developmentarrow_forward
- What is meant by “induction” in embryology? Describe the famous organizer experiment of Spemann and Mangold and explain its significancearrow_forwardWhich of the following cells develops into a human embryo?A. TrophoblastB. Extraembryonic membraneC. Inner cell massD. CumulusE. All of the abovearrow_forwardIf a deuterostome embryo split apart and one of the cells broke away early in it's development, then; The embryo would die, however the cell that broke away could survive and grow into a new individual The embryo would cease development and die Both the embryo and the cell that broke away could develop into separate animalsarrow_forward
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