One of the main biological problems with replacingdamaged tissue through the use of embryonic stem cells isa. immunological rejection of the tissue by the patient.b. that stem cells may not target appropriate tissue.c. the time needed to grow sufficient amounts of tissue.d. that genetic mutation of chosen stem cells may causefuture problems.
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One of the main biological problems with replacing
damaged tissue through the use of embryonic stem cells is
a. immunological rejection of the tissue by the patient.
b. that stem cells may not target appropriate tissue.
c. the time needed to grow sufficient amounts of tissue.
d. that genetic mutation of chosen stem cells may cause
future problems.
Step by step
Solved in 2 steps
- What would be the most likely effect of a tissue producing too much of a morphogen? A) Tissue transformation of neighboring undetermined cells B) Excessive cell division of neighboring cells C) Cell type conversion of neighboring differentiated cells D) No effect because the cue is still present. It would only be aproblem if the morphogen was missingWhich statement below best describes whether or not there is an advantage of using iPSCs to induce repair of bodily damage within a patient over using embryonic stem cells that have been donated? a. Because the iPSCs originated from the patient and thus probably will avoid rejection by the patient’s own immune system. b. Embryonic stem cells are easier to obtain. c. There are more ethical issues involved in iPSCs. d. Only embryonic stem cells are vastly renewable.CIENCE, TECHNOLOGY, AND SOCIETY Medical researchersare investigating artificial substitutes for various humantissues. Why might artificial blood or skin be useful? Whatcharacteristics would these substitutes need in order tofunction well in the body? Why do real tissues work better?Why not use the real tissues if they work better? What otherartificial tissues might be useful? What problems do youanticipate in developing and applying them?
- A method that circulating cancer cells commonly employ to increase survival is: Select one: a. Migration along the endothelial cell walls b. Entry into red blood cells c. Production of toxins d. Surrounding themselves with plateletsCancer cells have a complex interaction with the cells of the immune system that are present in the stroma. The immune cells have the potential to destroy the tumor if it is recognized as aberrant tissue. Which one of the following statements correctly describes an interaction between cancer cells and the immune cells of the stroma? A. Tumors stimulate formation of new blood vessels—angiogenesis—promoting tumor survival. B. The tumor establishes an immunosuppressive environment by blocking white-cell activation. C. Tumors invoke an inflammatory reaction that blocks entry of immune cells into the stroma. D. Immune cells block tumor growth by providing signals that inhibit cancer cell proliferation.Stargardt's disease was one of these that can be treated using embryonic stem cells. Why would scientist chose to use this type of stem cell in treatment of Stargard's? A. There ae not ethical issue concerning their use B. They retain stem cell properties even after specialization C. They are able to differentiate into the required cell type D. They are already specialized for this funtion
- Stem Cells and Tissue Renewal. Use the topic and relate the topic for initiation progression and invasion-metastasis of malignant melanomaDevelopment of cancer is a multi-step process; a.How does information on the onset of cancer agree with this hypothesis? b.How did data from human human affected with colon cancer support this hypothesis?Tissue engineering combines living cells with synthetic materials to create functional substitutes for human tissues. What components would you use to engineer replacement (a) skin, (b) bone, (c) muscle, and (d) blood?
- Embryonic stem cells have the potential to do all of the following except _____. a be rejected by a recipient's immune system b differentiate into almost any type of cell in the body c only able to grow into a similar type of cell d repair cells damaged by injury or diseaseMammography is an accurate screening technique for the earlydetection of breast cancer in humans. Because this techniqueuses X rays diagnostically, it has been highly controversial. Canyou explain why? What reasons justify the use of X rays for sucha medical screening technique?Which of the following statements are correct about tumors and metastasis (select all that apply)? A. The majority of cancer deaths are due to primary tumor B. Loss of basement membrane by tumor mass is strong predictor of metastasis potential C. The tissue stroma contributes to whether a tumor cell will metastasize D. The majority of life threatening tumors occur in epithelial tissues E. The tendency of a primary tumor to metastasize is similar across different tissue types