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Biologists from 1,058 academic institutions around the world assessed survey items on when a human's life begins and, overall, 96% (5337 out of 5577) affirmed the fertilization view.
However, in a new review published in the journal Aging, researchers Polina A. Loseva and Vadim N. Gladyshev from Harvard Medical School pose the controversial question: when does their organismal life begin? Science holds a palette of answers—depending on how one defines a human life.
Ashley Montague, a geneticist and professor at Harvard and Rutgers, is unsympathetic to the prolife cause. Nevertheless, he affirms unequivocally, “The basic fact is simple: life begins not at birth, but conception.”3
“When does a human life begin?” and “When does an independently sustainable human life begin?” are two very different questions. To the first one, I answer #3. At the moment of conception, we get a new being with all his/her unique genetic and epigenetic information.
According to a statement from the American College of Pediatricians, “human life begins at conception when the sperm and egg unite to create a unique and individual organism” (American...
To address the question of when life begins from a scientific perspective, we must first consider when a new cell that is distinct from sperm and egg is formed. As previously discussed,' scientists determine when a new cell is formed based on two simple criteria: cell composition and cell behavior.
Philosophy, science, and common sense all testify that a new, unique human life begins at conception. Click here to read more.
The overall point is that biology does not determine when human life begins. It is a question that can only be answered by appealing to our values, examining what we take to be human.
This article reviews the economical position that fertilization is the moment that personhood of the conceptus begins. Alternate positions proposing that personhood begins at other possible times after fertilization are presented and contrasted to the economical hypothesis.
A neutral examination of the evidence merely establishes the onset of a new human life at a scientifically well-defined “moment of conception,” a conclusion that unequivocally indicates that human embryos from the one-cell stage forward are indeed living individuals of the human species; i.e., human beings.