NEW YORK, June 15 - As the promised replacements for Affymetrix's defective batch of U74 mouse arrays arrive at labs around the world, some customers are now demanding to be compensated with additional reagents to make up for their lost time and expense.

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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.