Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Question
Chapter 19.1, Problem 1R
Summary Introduction
To review:
The information transplantation experiments provide about the fate of cells and the influence of environment, which affects the determination in early and late embryos.
Introduction:
In the course of development, an undifferentiated cell mass becomes a part of a particular type of tissue. This phenomenon is called cell fate. When the embryo develops, cell fate determination occurs. Determining the timing of fate, varies with the organism. Transplanting of cells from one embryo also called donor embryo to a different region of another embryo called recipient will reveal the time of determination of the cell fate if it happens at all.
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Life: The Science of Biology
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- What experimental evidence demonstrates that molecular gradients in the egg control development?arrow_forwardWhat is delayed implantation? Why is it important in marine mammals?arrow_forwardWhat are morphogens? Explain how they influence tissue patterning during embryonic development. Describe TWO specific examples to support your explanation.arrow_forward
- What parts are persistent throughout the development of the embryo? Why are these presentin all the stages? Please explain thoroughly, and if possible, avoid copy and pasting from previous answers.arrow_forwardDuring embryogenesis, how do segments become different that one another?arrow_forwardWhat would happen if one cell was removed or damaged at the 2-cell stage of sea urchin embryo development? What about if one cell was removed at the 4-cell stage? At the 8-cell stage? How about if two cells were separated after the first cleavage and allowed to develop on their own?arrow_forward
- At which stage of development does the Id protein function? Why is its function important?arrow_forwardIn Figure 13-2, the transplantation of certain regions ofembryonic tissue induces the development of structuresin new places. What are these special regions called, andwhat are the substances they are proposed to produce?arrow_forward
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