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Transcript
The Stem Cell Dilemma Zhaoyuan (Zoe) Xi AP Biology P. 1 Stem Cell Basics • 2 basic types: – Embryonic stem cells – Adult stem cells • Can divide & renew themselves for a long period of time • Unspecialized • Differentiate into other cell types • Potential to treat disease/injury The Dilemma • “The status of the human embryo and human embryonic stem cell research is a controversial issue as, with the present state of technology, the creation of a human embryonic stem cell line requires the destruction of a human embryo.” The Opponents • Mainly conservative pro-life Protestant evangelical and Catholic communities • Embryos are human • Morally wrong to destroy a human • Fertilization is the starting point in life • Alternative? • Adult stem cells The Supporters • Majority of Americans • Hold enormous potential for curing/treatments – Embryonic stem cells have greater plasticity • Embryos used for research are left over and would otherwise be thrown away • Embryos aren’t people