1. The document discusses three scenarios involving genetic selection of human embryos. The first involves using IVF to screen for embryos without a genetic disease in the family. The second wants a child to be a bone marrow donor to save another child with cancer. The third wants a healthy and physically stunning child with musical ability.
2. It explains how advances in genomics, IVF, and genetic engineering could make "designer babies" possible by allowing manipulation of human embryos and genetic information. However, these scenarios raise ethical issues around genetic enhancement and unintended consequences.
3. The central concept is that life is programmed by DNA, which can be inherited or mutated to change physical traits and disease risk, but these are also