[Lysander]

If you think that a blood cell will eventually develop into a fully articulated adult human then you certainly need that remedial class.

But the nucleus can develop into a “fully articulated adult human” when placed in the right environment can it not? (called a clone) Ok, I will revise my position we should protect the cell nucleus of cells, that when placed in the proper environment have a potential to become “a fully articulated adult human.” ...wait a minute that sounds like a sperm to me.

[wideawake]

when placed in the right environment can it not?

In other words, a set of circumstances that could never happen in nature. Spending millions of dollars to force a cell into a path of development which it would never take on its own.

Nope. A fertilized egg will develop into a human adult in normal course. Unless it dies of natural causes or someone murders it before it becomes an adult.

[MHGinTN]

Since human parts come only from humans, and the cells of an embryo are human parts else they wouldn't be used in humans, the embryo is a human individual life. ... Next attempt at nazification of human life?

[Anitius Severinus Boethius]

Incorrect. A sperm cell contains only half of a unique DNA structure. Millions of sperm cells die daily never getting the opportunity to leaves the testes. Just as most egg cells are never released from the ovaries. So, an individual sperm cell and an unfertalized egg are not, nor could ever produce, a human (that is, an organism that has a unique DNA signature from the species Homo Sapien) while a fertalized egg is instantly a seperate and distinct human.

When a unique DNA strand is created, it is a human. That single cell starts the miraculous journey called "life" and begins to produce specialized cells that will create the entire being at that moment.

The combination of a sperm cell and an egg cell create new life, neither a sperm cell alone nor an egg cell alone can produce that effect. Nor even your suggestion of a blood cell left to it's own devices can create new life.

Why are you so resistant to the idea that life begins at conception?