A. You expose mice to radiation levels that do not immediately kill them but results in death after Show more A. You expose mice to radiation levels that do not immediately kill them but results in death after about a month. However the irradiated mice can be rescued by a bone marrow transplant from a mouse that has not been irradiated. The recipient mice are then able to live normal healthy lives. The bone marrow transplant restores the depletion of cells in which of the following? (Choose ONE) B. You experiment with trying to rescue the irradiated mice with smaller and smaller amounts of transplanted bone marrow. Ultimately you discover that a minimum of about 10000 cells is required in order to give a high likelihood for survival. With 2500 cells some mice survive but many die. What is the best explanation for this observation? (Choose ONE) C. After bone marrow transplantation you study the surviving mice and discover that transplanted cells have engrafted into the spleen where they are found as clumps of cells. Mice with these clumps in the spleen survive and mice without clumps do not survive. You hypothesize that each clump came from a single transplanted cell which divided many times after transplantation to form the clump. In other words each clump is a clonal colony. However your friend is doubtful and believes that the transplanted cells simply arrived in clumps. Which of the following experimental observations provides the strongest evidence in support of your hypothesis that each clump is a clonal colony? (Choose ONE) Show less
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The post Which of the following experimental observations provides the strongest evidence in support of your hypothesis that each clump is a clonal colony? (Choose ONE) Show less appeared first on All Nursing Assignments.
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