The ambitious proposal could make it possible to grow human organs for transplant and speed up the development of vaccines, the project backers said in a paper published yesterday in the journal Science.
But the idea has already sparked criticism due to the potential of one day creating children with no biological parents, and due to the secrecy surrounding a recent closed-door meeting on the subject.
Dubbed "Human Genome Project-write" or "HGP-write" -- since synthesizing would amount to "writing" rather than "reading" our genetic code -- the project aims to reduce the cost of engineering DNA segments in the lab.
The new goal would be "more ambitious and more focused on understanding the practical applications than the original Human Genome Project," said George Church, a genetics professor at Harvard Medical School, and one of the 25 authors of the paper.
They did not provide an estimate for total costs, saying only that it would likely be less than the USD 3 billion for the Human Genome Project.
The genome is the genetic blueprint of every organism -- the complete set of DNA containing the instructions it needs to survive and thrive.