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Saturday 25 August 2012

Reproductive Cloning and Potential Threats to Society


It is argued by many that reproductive cloning (RC) would pull sharply at several threads of our social fabric. reproductive cloning is construed as a threat to family values, RC might enable de facto or full-on eugenics programs, and RC entails many concerns for the safety of mothers and children.
Reproductive cloning would make it possible for any sort of family configuration to have children. And much more than in vitro fertilization procedures, RC eliminates entirely the need for sexual reproduction. Single men who are infertile would be enabled to have children who are their genetic clones. A single woman could serve as her own DNA source for RC, an example of a woman having a child in the absence of spermatic services. All these possibilities, it is said by many, will destroy the traditional family along with its values that are the bedrock of our civilization.
Reproductive cloning raises the specter of eugenics, thoroughly discredited public policy attempts to "improve" the quality of the human race. RC would allow prospective parent(s) to select eggs from women who exemplify highly desired traits and qualities. For example, beauty is in the eyes of the beholder, but prized physiologic markers frequently include blonde hair, blue or green eyes, and athletic frames. Desired behaviors include above-average intelligence, artistic and/or aesthetic pursuits, and demonstrable achievements. A typical list, recently posted on a surrogacy services website, requests an egg donor who is "talented, intelligent, high achieving, humble, kind, organized, clean, healthy, attractive".
The above list was compiled for a one-off surrogacy procedure. But such requests, when aggregated and multiplied, represent a de facto eugenics program. Reproductive cloning would streamline and simplify the processes used in IVF. For example, in RC no donor eggs are needed. A skin cell from the donor of choice will suffice. Highly attractive donors could sell ten skin cells a day or more, depending on the technology, indefinitely. The Alphas and Betas of Brave New World would soon become a reality. Unplanned (by the state, that is) eugenics would silently slip into the mainstream. Instead of being the world's melting pot, it is said that RC would cause America to become a land populated by homogeneous Barbies and Kens.
The safety of RC is another important policy issue. At present most RC procedures in animals have a very low yield. Even if, for example, a live birth was possible for every ten procedures, a human mother-to-be would need to undergo ten implantations and early pregnancies before a living baby was born. Such repeated hormonal stress has unknown consequences, including maternal mortality due to such entities as eclampsia.
The child-who-is-a-clone would also be subject to a range of unknown health risks. RC attempts to replace physiologic processes that have developed over millions of years. Epigenetic reprogramming of gametes is an example of such a process that occurs over a long period of time. A second round of reprogramming on the sperm is performed by unknown factors in the egg cytoplasm after fertilization. Donor DNA obtained from an adult somatic cell is diploid, not haploid. It has not undergone primary spermatogenesis-related reprogramming, and egg-based reprogramming is significantly different than that occurring during sexual reproduction.
The above factors are representative of a much more detailed list of unknown variables that would have unforeseen consequences for the health of the clone. The long-term health of a clone is very much a roll of the dice at present. These issues will only begin to become apparent during the lives of the first few generations of human clones. What unfolds could possibly represent human experimentation at its worst.

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