Let us suppose that someone is successful at producing induced pluripotent stem cells (iPS) for replacement of pancreatic insulin-producing cells for people with type 1 diabetes. Which of the following could still be problems? I
the possibility that, once introduced into the patient, the iPS cells produce nonpancreatic cells II. the failure of the iPS cells to take up residence in the pancreas III. the inability of the iPS cells to respond to appropriate regulatory signals A) I only
B) II only
C) III only
D) I, II, and III
D
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These structures are held together by cohesin:
A. Nucleosomes B. Sister chromatids C. Homologous chromosomes D. Solenoids
Explain the tuberculin test, including visual identification and immunological interpretation of positive and negative results, and describe why a positive test does not indicate an active infection
What will be an ideal response?
Which of the following is a disadvantage of using corn to manufacture ethanol as a fuel additive?
A. Ethanol contains far less energy than other fuels. B. Ethanol absorbs water and would thus corrode fuel pipelines used in transport. C. Use of corn as a fuel source drives up the cost of grain worldwide. D. All of these are disadvantages.
Which of the following is not true of the lymph vascular system?
1.It delivers fats from the small intestine to the blood. 2.It collects fluids around capillary beds of the circulatory system. 3.It concentrates salts that are secreted by the kidneys. 4.It includes the spleen, thymus and tonsils.