Fact 1:
As pointed out above in the background section, there is a radical difference, scientifically, between parts of a human being that only possess “human life” and a human embryo or human fetus that is an actual "human being." Abortion is the destruction of a human being. Destroying a human sperm or a human oocyte would not constitute abortion, since neither are human beings. The issue is not when does human life begin, but rather when does the life of every human being begin. A human kidney or liver, a human skin cell, a sperm or an oocyte all possess human life, but they are not human beings they are only parts of a human being. If a single sperm or a single oocyte were implanted into a woman’s uterus, they would not grow; they would simply disintegrate.
Fact 2:
As demonstrated above, the human embryonic organism formed at fertilization is a whole human being, and therefore it is not just a “blob” or a “bunch of cells.” This new human individual also has a mixture of both the mother’s and the father’s chromosomes, and therefore it is not just a “piece of the mother’s tissues”.
Fact 3:
As demonstrated above, scientifically there is absolutely no question whatsoever that the immediate product of fertilization is a newly existing human being. A human zygote is a human being. It is not a “potential” or a “possible” human being. It’s an actual human being with the potential to grow bigger and develop its capacities.
Fact 4:
As all human embryologists know, a single-cell human zygote, or a more developed human embryo, or human fetus is a human being and that that’'s the way they are supposed to look at those particular periods of development.
Fact 5:
The immediate product of fertilization is genetically already a girl or a boy determined by the kind of sperm that fertilizes the oocyte. (If it contains 22 autosomes and an X and a Y chromosome, the embryo will be a genetic male.)"
Fact 6: These are a few of the most common myths perpetuated sometimes even within quasi-scientific articles especially within the bioethics literature.
As demonstrated above, the human embryo, who is a human being, begins at fertilization not at implantation (about 5-7 days), 14-days, or 3 weeks. Thus the embryonic period also begins at fertilization, …
Source:
When Do Human Beings Begin?
