NEW YORK, Feb. 28 - Orchid BioSciences on Thursday reported a 112 percent jump in fourth-quarter revenue as a significant increase in total expenses fueled a widened net loss.

For the period ended Dec. 31, Orchid reported total revenue of $11.4 million compared with $5.4 million one year ago, an increase the company pinned on increased sales of its SNPware and MegaSNPatron tools, and from its DNA identity-testing services and license fees.

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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.