Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 50.5, Problem 1SB
Summary Introduction
To review:
The key cellular events that contribute to morphogenesis in animals.
Introduction:
Morphogenesis is the process of formation of shapes during animal development. It controls cell growth, differentiation, and distribution of the cells during the embryonic development in an organism.
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What specific molecular factors determine the differentiation of embryonic stem cells into different cell types during development?
What statement best describes the difference between "fate maps" and "specification"?
If cells are transplanted from their normal region in an embryo to a different region in a recipient embryo, such cells will alter their fate, but not their specification.
Cell fate map describes the allocation of cells to the germ layers, ectoderm, mesoderm, or endoderm, whereas specification describes the exact tissues that each cell will ultimately become.
The fate map of an embryo does not change during development -- the fate map of an egg is the same as the fate map of a late blastula -- whereas the specification map of an embryo changes continually as the embryo's development proceeds.
The fate map of a cell is determined by labelling that cell and following it during normal development, whereas the specification state of a cell is determined by culturing a cell in an artificial medium and observing what tissues form from it.
What are morphogens? Explain how they influence tissue patterning during embryonic development. Describe TWO specific examples to support your explanation.
Chapter 50 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 50.1 - Prob. 1SBCh. 50.1 - Prob. 2SBCh. 50.2 - Prob. 1SBCh. 50.2 - Prob. 2SBCh. 50.2 - Prob. 3SBCh. 50.3 - Prob. 1SBCh. 50.3 - Prob. 2SBCh. 50.4 - Prob. 1SBCh. 50.4 - Prob. 2SBCh. 50.5 - Prob. 1SB
Ch. 50.5 - Prob. 2SBCh. 50.5 - Prob. 3SBCh. 50 - Prob. 1TYKCh. 50 - Prob. 2TYKCh. 50 - Prob. 3TYKCh. 50 - Prob. 4TYKCh. 50 - Prob. 5TYKCh. 50 - Prob. 6TYKCh. 50 - Prob. 7TYKCh. 50 - In the development of the female sex organs: a....Ch. 50 - In the embryonic development of the eye: a. the...Ch. 50 - Prob. 10TYKCh. 50 - Discuss Concepts Experimentally, it is possible to...Ch. 50 - Discuss Concepts Developmental biologist Lewis...Ch. 50 - Discuss Concepts Arguably, in sexually reproducing...Ch. 50 - Prob. 14TYKCh. 50 - Prob. 15TYKCh. 50 - Prob. 16TYKCh. 50 - Prob. 1ITDCh. 50 - Prob. 2ITDCh. 50 - Prob. 3ITDCh. 50 - Prob. 4ITD
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- Which embryo (a, b, c) contains totipotent cells, or pluripotent cells? Where are the pluripotent cells? How is totipotency different than pluripotencyarrow_forwardWhat is the role played by biophysical properties in mechanisms of morphogenesis?arrow_forwardExplain why E is the correct choice. Various types of stem cells that develop from the mesoderm are involved in processes by which all cells of the protostomes and Deuterostomes obtain or regulate ions, molecules, or monomers (nutrients). Therefore, these cells will perform which of the following processes? a) Osmosis, b) active transport, c) facilitated diffusion, d) exocytosis, e) all are correct.arrow_forward
- Could you please describe the general appearance, distribution, and abundance of stem cells in an adult mammal? Thank youarrow_forwardWhat are some of the ethical issues that arise from using embryonic stem cells?(b) To avoid these issues, scientists use IPSCs. What are the pros and cons to using iPSCs inrelation to embryonic stem cells?arrow_forwardDiscuss the molecular players in myogenesis. Specify their role in the process.arrow_forward
- What is organogenesis, and why is this concept important to the process of development?arrow_forwardHow does a constant genome produce various cell types during embryogenesis?arrow_forwardWhat generates the first differences among cells in an early embryo? And what controls the differentiation of all the various cell types as development proceeds?arrow_forward
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