Sigh . . . There are still people out there trying to justify elective abortion of healthy babies in healthy mothers by claiming that the embryo is nothing special, since liver tissue is alive when it is harvested for transplantation and ” . . . a skin cell contains DNA that could be implanted into a human egg and be developed into a baby.”
That hypotheticals is, at this time, just that. No one has yet been able to clone humans beyond a very early blastocyst. In some way, these embryos don’t function well enough to maintain organized cell division, development and growth.
However, even if cloning a human were possible, that new human life would not begin at the harvesting of either the skin cell, the liver tissue or the oocyte destined to be enucleated. Just as with gametes in vivo, those cells are end-stage specialized cells that do *not* actually have the potential to be other types of cells – much less a new human – without fertilization or the manipulation that scientists might someday be able to discover.
The natural, in vitro, or someday-maybe cloned human life begins at fertilization or not-yet-achieved generation of functional clones. Each are – or would be, in the case of the hypothetical – verifiable by observing the organized cell function, development and division in the embryo, driven by the nucleus of the new organism. Intentional, interventional abortion ends that organized development and growth, causing the death of the organism.
I’m sure my explanation won’t stop those who really, really, reeeally want to abort unwanted humans from using junk science to justify killing humans. Most likely, they will just go back to those long essays discriminating between which humans are human-enough.