Doctors predict that in a matter of years they will be able to remove an egg cell from a woman, fertilize and grow it as an embryo in a test tube, and then implant it in the mother or even in the uterus of a volunteer, where it will continue to develop until delivery.
But doctors have yet to come up with an answer to a moral question that this awesome ability will raise: What should be done with the mistakes, the children born deformed or defective as a result of science's attempts to manipulate life?
Last week a scientist whose work has...
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