By Justin Petrone

Growing demand for arrays designed to detect tumor copy-number changes is enticing more chip manufacturers to offer tools tailor-made for cancer research.

Ambry Genetics is the latest company to debut a cancer-screening service based on array comparative genomic hybridization. But competitive offerings loom on the horizon, with new products expected from Signature Genomics and Oxford Gene Technology, among others.

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In Science this week: self-assembly of DNA components in solution, and more.

Genetics and Molecular Research retracts two gastric cancer papers for being "substantially equal" to other papers, according to Retraction Watch.

A new analysis indicates that the Ebola virus behind the current West African outbreak is mutating at about the same rate as other Ebola viruses.

With the launch of Scott Kelly into space today, the study of him and his earthbound brother to disentangle the effects of life in space from the effects of genetics kicks off.