An alternative way of avoiding the transplant rejection problem mentioned in question 4 would be to reprogram adult body cells and make them into stem cells. Should ES cell research prove fruitful, it raises the issue of a particular type of cloning known as therapeutic cloning.
Raina knew that Proposition 71 had widespread support, including that of Governor Arnold Schwarzenegger and several Nobel Prize-winning scientists, but she was also well aware of the controversy surrounding ES cell research.
Would you support the use of therapeutic cloning in order to produce ES cells for treatment of disease or injury? Why or why not?
However, they appear to be more limited their ability to differentiate than ES cells Finally, after weighing the arguments one last time, Raina cast her ballot.
Raina wondered if embryos, even those so early in development, should be considered human beings. Explain your answer 5. ES cell lines can be obtained from five day old embryo blastocyst stage.
Research in this area is already underway. Do you think that research efforts currently focused on ES cells should be shifted to this venue, or that a variety of approaches should be pursued?
Some, known as embryonic germ cells, may be obtained from aborted or miscarried fetuses, but this source is subject to the same sort of controversy as ES cells.
Well before Election Day, Raia had taken the time to inform herself about the ongoing ES cell debate She learned that ES cell lines are obtained by removing a group of cells, called the inner cell mass, from an embryo that is about five days old also known as a blastocystand growing the cells in a Petri dish.
As she has studied the pros and cones of ES cell debate. Might it also be wrong to benefit from their sacrifice? Some very promising results have come from research using stem cells taken from the umbilical cord and placenta, and adult tissues such as bone marrow and parts of the brain.
Now it is possible that similar initiatives may appear on the ballots of other states. Do you think that a five-day-old embryo should be accorded the status of a human person? Raina found this issue to be one of great concern. This would prevent the rejection of transplanted cells by the immune system of the recipient.
Critics say that existing ES cell lines have only a limited lifespan before their usefulness for research is lost, and that the number of available lines is insufficient. Raina had read about stem cells from other sources besides embryos.
ES cell research funding from other sources was unaffected. How would you have voted? These embryos are voluntarily donated, and otherwise would be discarded. In addition, ES cells could be studied to help scientists understand the basic processes of human development, and used to test new drugs.
ES cell research opponents say that it should be restricted because it requires the destruction of human life. If so, then producing an excess of them for IVF and then discarding them would be wrong.
In AugustPresident George W Bush approved the use of federal funding for ES cell research, but only on cell lines already in existence, in order to avoid the destruction of additional human embryos. In fact, some of these non-embryonic cells have already been used to treat medical conditions, including blood disorders, spinal cord injury and heart attack damage.
She learned that the ES cell lines currently used for research are obtained from embryos left over from in vitro fertilization IVF. Such stem cells are obtained without harming embryos or fetuses, and for this reason their use meets with few ethical objections.
If so, do the potential benefits of ES cell research outweigh the ethical objections? How do you think Raina voted on Proposition 71? The cells are prized by researchers because they are pluripotent, meaning that they have the potential to differentiate into a wide range of different types of cells if properly stimulated.Case Study Questions for the Theory Test.
Are you ready for the NEW style Theory Test? Since 28th September you need to answer a case study-style question as part of your Theory Test. Show transcribed image text Module 2: Stem Cells- Bioethics Case Study Standing in the voting booth, Raina hesitated. It was November 2,and she had to make her final decision on how to vote for California Proposition 71, the California Stem Cell Research and Cures Initiative.
Driver CPC Case Studies Test (Module 2) Related articles. Industry News, News. you will need to take a part two case study conversion test. This will consist of 10 case studies with a total of 50 questions. To book the part two case study conversion test you will need to contact the DVSA on and select the theory test option.
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Once you have passed the module 4 exam (and assuming you have passed module 1,2 and 3) you can drive an HGV professionally on the public highway. Module 04 Case Study: Bone Tissue Part I— “Marissa” Questions 1.
Describe bone tissue and the role each component plays in bone physiology and remodeling.Download