There's still a role for chemotherapy in the age of personalized medicine, NPR reports.

"We're in a transition state right now where the types of available treatments are changing," Robert Comis, an oncologist at Drexel University, says. "But we can't lose sight of the fact that cytotoxic chemotherapy has cured many, many patients."

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Technology Review reports that researchers in the US have used CRISPR to modify a number of human embryos.

By introducing genes from butterfly peas and Canterbury bells, researchers in Japan have developed a blue chrysanthemum, according to NPR.

Plant researchers plan to sequence some 10,000 samples that represent the major plant clades, ScienceInsider reports.

In Nature this week: a Danish reference genome, and more.