Pro-Choice Source #41 – Book

“I am 77 years young and my heart and its valves have been working nonstop since my days as an embryo in my mother’s uterus.” 41 41 Guttmacher, A., Life in the Making: the Story of Human Procreation, New York: Viking Press, 1933, p. 3.

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Pro-Life Source #29 – Testimony

“Medical textbooks and scientific reference works consistently agree that human life begins at conception . . . Among those scientists who have no vested interests in the abortion issue, there is an overwhelming consensus that human life begins at conception.” 29 29 Brewer, D., Testimony of David Brewer, MD, former Abortion Provider, Priests for Life,…

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Scientific Source #152 – Peer-Reviewed Article

“The concept of the ovarian continuum can be understood as a process that occurs during a woman’s lifetime and begins during intrauterine life with fertilization.” 152 152 Vigil, P., Lyon, C., Flores, B., Rioseco, H., & Serrano, F., Ovulation, a sign of health, Linacre Q., 2017 Nov;84(4):343-355, https://pubmed.ncbi.nlm.nih.gov/29255329.

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Scientific Source #151 – Peer-Reviewed Article

“The mammalian oviduct is the place where life begins as it is the site of fertilization and preimplantation embryo development.” 151 151 Pérez-Cerezales. S., Ramos-Ibeas, P., Acuña, O.S., Avilés, M., Coy, P., Rizos, D., & Gutiérrez-Adán, A., The oviduct: from sperm selection to the epigenetic landscape of the embryo, Biol Reprod, 2018 Mar 1;98(3):262-276, https://pubmed.ncbi.nlm.nih.gov/29228115.

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Scientific Source #150 – Peer-Reviewed Article

“Fertilization, the fusion of sperm and oocyte to form a zygote, is the first and arguably the most important cell-cell interaction event in an organism’s life.” 150 150 Wilson, L.D., Obakpolor, O.A., Jones, A.M., Richie, A.L., Mieczkowski, B.D., Fall, G.T., Hall, R.W., Rumbley, J.N., and Kroft, T.L. The Caenorhabditis elegans spe-49 gene is required for…

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Scientific Source #149 – Peer-Reviewed Article

“We conclude that it is plausible, therefore, that human organisms begin to exist at fertilization.” 149 149 Miller, C. & Pruss, A., Human organisms begin to exist at fertilization, Bioethics, 2017 Sep;31(7):534-542, https://pubmed.ncbi.nlm.nih.gov/28786173.

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Scientific Source #148 – Article

“[A] new composite individual is started at the moment of fertilization.” 148 148 Dr. Landrum B. Shettles, M.D., The Presbyterian Hospital New York, https://www.nytimes.com/1973/02/14/archives/letters-to-the-editor-pregnancy-abortion-and-the-supreme-court.html.

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Scientific Source #147 – Medical Textbook

“With fusion of the two pronuclei (synkaryon) fertilization is completed and marked changes occur in the organelles preparatory to the ensuing rapid cleavage division (mitotic divisions of the early zygote).” 147 147 Reid, Ryan, & Benirschke, “Principles and Management of Human Reproduction”, 1972, 176.

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Scientific Source #146 – Book

“The fertilization of an egg by the sperm is one of the greatest wonders of nature . . . the growth of a living human being.” 146 146 Dr. George W Corner, the endocrinologist and research scientist, quoted in Nathanson, B.N, M.D The Hand of God: a Journey from Death to Life by the Abortion…

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Scientific Source #145 – Medical Textbook

“Reproduction depends on the union of male and female gametes (reproductive, or germ, cells) each with a half set of chromosomes, to form a new individual with a full, unique set of chromosomes.” 145 145 Human Physiology: From Cells to Systems 2nd Cd Ed,Sherwood, Kell & Ward, 2013, Nelson Education Ltd. 736.

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