The point I was making concerns the beginning of human life - be it individuals, twins or triplets it is still the beginning of life, and terminating the process will result in extermination of life.
I know - you keep glibly making the same point without actually explaining or justifying it.
So is a human zygote genetically human - sure it is. Is it alive - yup, so it is without doubt human life.
But the oocyte is also genetically human and alive - so is also human life.
If I go and give a blood sample the cells in that sample are genetically human and alive, so they are also human life.
So you need to explain why the zygote is distinct from, as an example the oocyte and spermatocyte that fused to create it - all three cells are undoubtedly human life but for some reason, that you have failed to explain and justify the former somehow must be protected at all costs, while the latter are expendible.
Now for the RCC the explanation is that the zygote is Bob, not just may develop into Bob - I think that claim crumbles to dust when challenged, but at least it is an explanation, albeit a faulty one. What is your explanation AB - and don't just come back with more "human life begins at conception" guff - explain and justify you claim.
And while you are at it please answer my question - is the zygote Bob?