A research team in China has attempted to modify human embryos so that they harbor inactivated CCR5 genes and are resistant to HIV infection, Nature News reports. CCR5 encodes a protein that HIV relies on to enter and infect T cells, and people with naturally occurring CCR5Δ32 mutations are resistant to the virus.

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In Science this week: International Wheat Genome Sequencing Consortium publishes the bread wheat cultivar Chinese Spring reference genome, and more.

At his FDA Law Blog, Jeffrey Gibbs discusses FDA's technical assistance for the draft Diagnostic Accuracy and Innovation Act.

The New York Times reports that genetic testing has uncovered unfaithful penguins at a Utah aquarium.

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