After the Test

Actress and director Angelina Jolie writes in the New York Times that she decided to undergo a preventive double mastectomy after learning that she carries a mutation in her BRCA1 gene. Jolie's doctors estimated that she had an 87 percent risk of developing breast cancer and a 50 percent risk of ovarian cancer. Jolie's mother, Marcheline Bertrand, died of ovarian cancer at 56.

After her surgery, Jolie says she now has a less than 5 percent chance of developing breast cancer.

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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.