The Google Doodle today features Nettie Stevens for what would've been her 155th birthday. As Vox writes, Stevens uncovered the connection between the Y chromosome and maleness by studying mealworms. "Thanks to Stevens's work — and the work that built upon it — we now know that sex is hereditary, and that dads' sperm in particular determine the sex of offspring," it adds.

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The Atlantic reports that genetic counselors are coping with an influx of patients seeking advice on their direct-to-consumer genetic test results.

A small study finds differences between three genomic prostate cancer tests, Medscape reports.

In Nature this week: shared genetic architecture for asthma and allergic diseases, and more.

A survey of Canadians finds them to be divided on genetically modified food, the Ottawa Citizen reports.