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A similar theological problem is an idea of creating living tissue in a laboratory and whether that represents humans taking on the role of God.This argument also applies to the potential for human cloning.When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function, such as a muscle cell, a red blood cell, or a brain cell.
For example, by studying how stem cells develop into specific types of cells, scientists potentially could learn how to treat or prevent relevant ailments.
Stem cells have the remarkable potential to develop into many different cell types in the body during early life and growth.
In addition, in many tissues they serve as a sort of internal repair system, dividing essentially without limit to replenish other cells as long as the person or animal is still alive.
Umbilical cord-derived stem cells obtained from the cord blood also have been isolated and used for various experimental treatments. Although these cell lines are shorter-lived than embryonic cell lines, uniparental stem cells hold vast potential if enough research money can be directed that way: pro-life advocates do not technically consider them individual living beings.
Two recent developments from stem cell research involve the heart and the blood it pumps.