Merriam-Webster Deluxe Dictionary, 10th collegiate Ed. Moore KL. Kischer CW. Fall , American Bioethics Advisory Commission. Eberl JT. The beginning of personhood: A Thomistic biological analysis. Quote is from page Vjugina U, Evans JP. New insights into the molecular basis of mammalian sperm-egg membrane interactions, Frontiers in Bioscience. When does human life begin?
A scientific perspective. Box 78, Columbus Ave. Cox LJ, et al. The zinc spark is an inorganic signature of human egg activation. Sci Reports. Condic, ML. It is scientifically correct to say that an individual human life begins at conception…. Our laws, one function of which is to help preserve the lives of our people, should be based on accurate scientific data.
Watson A. This straightforward biological fact should not be distorted to serve sociological, political, or economic goals. Only one witness said no one can tell when life begins.
Many other prominent scientists and physicians have likewise affirmed with certainty that human life begins at conception:. Ashley Montague, a geneticist and professor at Harvard and Rutgers, is unsympathetic to the prolife cause.
He owned and operated what was at the time the largest abortion clinic in the western hemisphere. He was directly involved in over sixty thousand abortions. Science agrees on this point: Life begins at conception.
Keith Moore, T. See also the "Prenatal Timeline. Many more milestones of life could be noted here, but the bottom line is, once a human egg is fertilized by sperm, a new human being has come into existence. All information concerning the child's sex, hair color, eye color, and much more is present from the very beginning. Some people acknowledge that it may be human life, but say it is not yet a person.
They get stuck on terms like zygote or embryo or fetus , but those are just stages of life, like infant or toddler or teenager. What are the signs of personhood? God, the Author of all life, should have something to say about His creation, and He does! In Psalm , David responds with wonder at how well God knows him:. You created my inmost being; you knit me together in my mother's womb. I praise you because I am fearfully and wonderfully made; your works are wonderful, I know that full well.
My frame was not hidden from you when I was made in the secret place. All the days ordained for me were written in your book before one of them came to be. God's knowledge of us before birth means that we are important to Him even then, because we are made in His image Genesis Most importantly, is the zygote merely another human cell like a liver cell or a skin cell or is it something else?
Just as science distinguishes between different types of cells, it also makes clear distinctions between cells and organisms. Both cells and organisms are alive, yet organisms exhibit unique characteristics that can reliably distinguish them from mere cells. Human beings can be distinguished from human cells using the same kind of criteria scientists use to distinguish different cell types.
A human being i. Human embryos from the one-cell zygote stage forward show uniquely integrated, organismal behavior that is unlike the behavior of mere human cells. The zygote produces increasingly complex tissues, structures and organs that work together in a coordinated way. This organized, coordinated behavior of the embryo is the defining characteristic of a human organism. In contrast to human embryos, human cells are alive and, under some circumstances, they can assemble into primitive tissues and structures.
Yet under no circumstances do mere human cells produce the kind of coordinated interactions necessary for building a fully integrated human body.
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