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"Certainly the technologies are rapidly moving forward where one could imagine these technologies being used to create a baby outside the womb in the laboratory," says Insoo Hyun, a bioethicist at Case Western Reserve University.
That would raise many ethical issues.
"If, hypothetically, you can fertilize an egg outside a body and carry it all the way to term outside the body, then who's responsible for this baby now?" Hyun says. He also stresses that scientists are nowhere near being able to do that yet.
Updated by Haljkljavahlibrz