Stem calls are primordial cells of a human being which may develop into all or many of the 210 different kinds of tissues in the human body. Stem cells are not fully determined yet to be any particular type of cell or tissue. The use of adult stem cells is already legal; however, the use of human embryonic and some fetal stem cells is not.
The harvesting of embryonic stem cells is opposed by some conservatives who link it to abortion. The major point of disagreement involves the use of stem cells derived from early human embryos and aborted fetuses. Federal regulations prohibit live aborted fetuses from being used in experiments, regardless of whether they are expected to survive to live birth. Federal law also prohibits fetal tissue to be taken from live aborted fetuses; nor may the abortion be influenced in any way by the needs of scientific researchers for any reasons.
