Explain why the use of iPS cells for stem cell therapies may be a desirable alternative to the use of either embryonic stem cells or adult stem cells
What will be an ideal response?
Induced pluripotent cell lines may provide an alternative way to develop lifesaving therapies without the destruction of embryos, but much more research on the use of iPS cells is needed before they can be used in treatment. In addition, a research team created iPS cells from mouse cells and used them to generate fertile adult mice, suggesting that iPS cells are pluripotent. However, other work shows that iPS cells may not have the same developmental potential as embryonic stem cells and more research is needed to determine if iPS cells are equivalent to embryonic stem cells.
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The characteristic ____________________ of a radioisotope allows us to determine the age of rocks and fossils using
a technique called ____________________. Fill in the blank(s) with the appropriate word(s).
One of the main problems associated with treating human diseases through gene therapy is
A) finding human cells that could potentially be genetically engineered. B) the inability to clone human cells. C) finding a delivery system that would target specific cell types. D) finding the correct form of the gene to be delivered. E) determining a disorder that could be cured through gene therapy.
If you used flow cytometry to sort a sample of cancerous cells that have been treated with a drug to prevent them from replicating their DNA, what peaks would you expect to see on the resulting flow cytometry data set?
A) A only B) C only C) A and B only D) A, B, and C
All of the following contributes to pathogenicity EXCEPT:
a. enzymes b. capsules c. toxins d. allergic reactions