A stem cell is defined as a cell that can change into a different type of cell. Stem cells are different from other cells because from the start they do not have specialized functions. Embryonic stem cells are found within the blastocyst (embryo), which is just a tiny package of around twenty cells. They are extracted when the blastocyst is less than a week old (“What Are Stem Cells?”). These stem cells can live and be maintained for a long amount of time. If the use of them was not as strictly regulated, the human population could be much more advanced, health wise. A large amount of the embryonic stem cells used for research are left over from in vitro fertilization and donated. If they weren't donated, they would be destroyed, thus losing their incredible potential. Embryonic stem cells are classified as pluripotent (“Miracle Cell”). This means they can be grown and changed into any other type of cell. They also have the benefit of being able to multiply and divide numerous times, as opposed to adult stem cells. The adult stem cell, in addition, is not as easily manipulated to become any cell, as in the case of the embryonic stem cell. The embryonic stem cell potentially could cure many life threatening diseases, including but not limited to genetic disorders and Alzheime...
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