Biological Science, Loose-leaf Edition (7th Edition)
7th Edition
ISBN: 9780135272800
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 21, Problem 11PIAT
Will iPS cells be the cure for diabetes?
Type I diabetes is a form of diabetes that is due to the loss of insulin- producing cells of the pancreas. The potential of stem cells–in particular, induced pluripotent stem (iPS) cells–for therapy has gotten a lot of press. Can iPS cells be coaxed to differentiate into insulin-producing cells? Is there any evidence that they might actually work to cure type I diabetes?
What are iPS cells?
a. cells taken from early human embryos
b. cells taken from the pancreas of people without diabetes
c. cells derived by de-differentiating specialized adult cells
d. cells derived by differentiating pancreas precursor cells
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The metabolic pathway below is used for the production of the purine nucleotides adenosine monophosphate (AMP) and guanosine monophosphate (GMP) in eukaryotic cells. Assume each arrow represents a reaction catalyzed by a different enzyme. Using the principles of feedback inhibition, propose a regulatory scheme for this pathway that ensures an adequate supply of both AMP and GMP, and prevents the buildup of Intermediates A through G when supplies of both AMP and GMP are adequate.
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Chapter 21 Solutions
Biological Science, Loose-leaf Edition (7th Edition)
Ch. 21 - 1. What is apoptosis?
a. an experimental technique...Ch. 21 - In adult animals, ______ are a source of...Ch. 21 - 3. What is a homeotic mutant?
a. an individual...Ch. 21 - 4. A tool-kit gene is _________.
Ch. 21 - What is the connection between genetic regulatory...Ch. 21 - Which of the following provides the strongest...Ch. 21 - QUANTITATIVE Imagine a situation in which a...Ch. 21 - 10. PROCESS OF SCIENCE Some stickleback fish...Ch. 21 - Will iPS cells be the cure for diabetes?
Type I...Ch. 21 - 12. If researchers were attempting to stimulate...
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