| An embryo is a just a human being at a particularly primitive stage of development. It has a full complement of chromosomes, and will, if implanted, spontaneously gestate. It is not like a sperm, which is not a completed human organism, nor like a clone- sample, which requires artificial laboratory procedures to make into something. Even supposing that one wanted to distinguish between levels of development, and say that the embryo, though a human organism, is too primitive to be a human being, the matter is sufficiently disputable, and the humanity of the embryo is more emphatic than just a bag of cells, so that at least a sense of gravity should be expected in making decisions in this area. |