A Middle Ground for Stem Cells - New York Times

A Middle Ground for Stem Cells - New York Times: "But that does not mean the stem cell debate is about when human life begins. It is a simple and uncontroversial biological fact that a human life begins when an embryo is created. That embryo is human, and it is alive; its human life will last until its death, whether that comes days after conception or many decades later surrounded by children and grandchildren. "
Human Life Begins at Conception-Not

Yuval Levin, a former member of the President's Bio Council, does a great job of jumping to a conclusion. No, I don't believe human life begins at conception. I had to change my mind after Ian Wilmut did such a good job in his book Dolly in explaining how gradual that process of fertilization is. When the sperm enters the egg, there is a fifteen minute period of repacking that changes the sperms DNA to enter the next stage. Eight hours after penetration, the two strands of DNA that will become the next step of the fertilized egg still haven't joined. I've got a lot more to learn about this gradual process. DNA from the fluid in the egg can become involved in the new DNA strands in the Nucleus. Those genes are not in postion at the moment of fertilization.

There is a new science of genomics that deals with the effects of substances in the area surrounding the DNA. These substances change the fundamental nature of what the cell will become. A fertilized egg can become one, two or even more identical siblings. That doesn't happen until several days after fertilization.

Yuval Levin, you need to do a deep study of modern biology. Then come back to us again.