Are there genes that are "exclusively human"? asks Iddo Friedberg at Byte Size Biology. The human genome has been compared to those of great apes in an attempt to see which genes are shared and which make people different from their primate cousins, Friedberg says. A group of researchers from China and Canada is trying to answer the question of whether there are any genes in the human genome that are de novo, and are not homologous to any in apes.

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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.