The reason religion is so powerful

[John 6IX Breezy]

So you're saying that it's reasonable to consider a cheek cell is a person if you can generate a viable clone from it, and the only thing actually needed for something to actually be a human person is that it be a genetically human potentially viable cell.

If the cells from your cheeks can be transformed into totipotent stem cells (and have whatever other zygote-like qualities are necessary), then yes, without question that is the beginning of a new organism. Its analogous to the hydra, in which any cell in its body is totipotent and can produce a new hydra organism.