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Scientists are now contemplating the creation of a synthetic human genome, meaning they would use chemicals to manufacture all the DNA contained in human chromosomes.
The prospect is spurring both intrigue and concern in the life sciences community, because it might be possible — if someone were able to create a totally artificial genome — to implant that genome into embryos and create human beings without parents.
While the project is still in the idea phase, and also involves efforts to improve DNA synthesis in general, it was discussed at a closed-door meeting at Harvard Medical School in Boston on Tuesday. The roughly 150 attendees were told not to contact the media or to tweet about the meeting.
Organizers said the project in some ways would be a follow-up to the original Human Genome Project, which was aimed at reading the sequence of the three billion chemical letters in the DNA blueprint of human life. The new project, by contrast, would involve not reading, but rather writing the human genome — synthesizing all three billion units from chemicals...