( m. The researchers noted that ...)DNA Transplant Brings Creation of Artificial Life a Step Closer,Health

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The researchers noted that after the DNA transplant, bacterial cells were using only the added genome, and had become biologically identical to the donor bacteria. The host cells' genomes had been silenced or destroyed.

"We don't know for certain how the donor genome takes over. But what is clear is that the technique works," Dr Venter said.

The project has drawn criticism from groups concerned that it is unethical to patent new forms of life, and that similar techniques could be used to create dangerous new germs.

Dr Venter, however, insisted that his team had worked under ethical scrutiny at every stage, and even interrupted the project for 18 months while a bioethics panel was convened to review it.

"I don't think there has ever been another field of science that has had so much public input and analysis before there have been any results. Potential abuses such as biological warfare concern everyone in the field," he said.


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