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akuma587 said:
Tispower1 said:
Fertilalisation, as from that point the 'baby' has a full genetic code, and the potential to be human. That is also the point where it starts growing.

 

Development =/ Life.  The egg and the sperm were already alive.  I can put my cheek cells in a petri dish and culture them, but that doesn't mean they will ever turn into an organism or anything meaningful.

There is no magical transformation from life to non-life, as both of the components of a fertilized egg were alive beforehand.  Thus being "alive" by a human standards would have to be something different.  These are the most plausible theories:

1) When brainwave activity begins (around end of 1st trimester)

2) When the baby becomes self-aware (later in the pregnancy)

3) When the baby can survive outside the womb (depends greatly, but pretty much without exception no fewer than five months)

A baby is definitely already "alive" when it is born, so that theory should be thrown out.

I know cells are alive, in fact I didn't mention the word alive. I think that at fertilisation, you have created a new genetic code, for a new human being, sperm egg cells try to create a new genetic code, but obviously rarely suceed. However I believe that as soon as the full DNA has been made, that is when it is a 'human', and should not aborted. As at that point genetic tests would reveal the zygote (?) is human, as opposed to an egg or sperm.