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Genetic engineering: 'Designer babies' Inheritable characteristics are passed from one generation to the next through DNA, a molecule that is present in all our cells. DNA is divided into genes, units of genetic information, each giving raise to a different physical feature or characteristic trait of the creature it forms. In the past three decades, scientists have learned how to mix and match characteristics among unrelated creatures by moving genes from one to the other. This is "Genetic engineering." Extensive testing was carried out on many animal species in the 1970's to try to improve and perfect genetic engineering and it seems certainly possible, although most people believe unethical and immoral, to now, genetically engineer human babies. It is also becoming possible to change the genetic makeup of an embryo, giving rise, eventually, to the possibility of a 'designer baby'. Now genetic engineers are starting to modify the genes of humans using three...

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