Shares in Sequenom gained more than 16 percent for the 5-day trading period ended Tuesday. The firm’s shares rose after news on Monday that it had signed a pact with Qiagen under which the firms will collaborate on developing prenatal diagnostics (see related article).
Cepheid led decliners for the week with a 7.65 percent drop, despite no new news regarding the company.

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The Seattle Times writes that pharmacogenomics testing can help choose medications that may work best for people with depression.

Researchers report that deleting one gene from butterflies affects their wing coloration patterns, according to the Washington Post.

In PNAS this week: genome sequencing of weevil symbionts, retinoid X receptor deletion in lung cancer metastasis, and more.

Sequencing could help combat foodborne illnesses, according to a blog post by Food and Drug Administration officials.