grown into any type of cell. Scientists hope they can use stem cells to treat various types of diseases. For example, stem cells could be used to create new heart cells to replace those damaged by a heart attack. While there has been some promising research on stem cells harvested from adults, most scientists say there is greater promise in embryonic cells and that cloned embryos may be a key resource in this effort. Until recently, this research was barred from receiving federal funding.
             Many question why there is need to clone human embryos. There are many legitimate reasons for investigating cloning. Embryologists believe that the research could help improve the lives of further generations. Cancer research is possibly the most important reason for
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