By definition, stem cells can divide for indefinite periods in culture and give rise to specialized cells. Stem cells are best described in the context of human development. When fertilization occurs, it creates a single cell that can form an entire organism. Currently, the study of stem cells is an intensely debated topic. These studies affect the government position, the medical uses, and the possible pros and cons of this whole biological experience.
              Stem cells are critical in early human development, and they can give rise to many types of cells necessary for fetal development. The three main types of stem cells are adult stem cells, multipotent stem cells, and pluripotent stem cells. While adult stem cells hold real promise, there are some significant limitations on what we may or may not accomplish with them. Multipotent cells have an excellent potential for use in both research and the development of cell theories. Pluripotent stem cells, however, are capable of giving rise to most tissues of an organism.
             During his presidency, President Bush "...forbids federally funded scientists from using anything except existing supplies"(www.cnn.com pg.1).
              Stem cells are used medically to regenerate healthy tissue to replace tissue damaged by disease or injury. Many scientists hope to use the transformational quality of these cells to create treatments for various diseases. Perhaps the most far-fetching use of human stem cells is the generation of cells and tissue that could be used for cell theories. Stem cells are stimulated to develop into specialized cells that offer a possibility of a renewable source or as replacement cells and tissues that have been damaged by disease. While this research shows extraordinary promise, there is much to be done before realizing these advancements.  
               Although President Bush allowed limited stem cell funding, he is still against stem cell research. He endorsed only limited federal funding for ste...