Genetics

There is no 'gay gene,' major study concludes

There's no such thing as a single "gay gene" that drives a person's sexual behavior, concludes the largest genetic study ever conducted on the issue.

Medical research

A comprehensive catalogue of human digestive tract bacteria

The human digestive tract is home to thousands of different strains of bacteria. Many of these are beneficial, while others contribute to health problems such as inflammatory bowel disease. Researchers from MIT and the Broad ...

Genetics

After 10-year search, scientists find second 'short sleep' gene

After a decade of searching, the UC San Francisco scientists who identified the only human gene known to promote "natural short sleep"—lifelong, nightly sleep that lasts just four to six hours yet leaves individuals feeling ...

Genetics

Genetic regions associated with left-handedness identified

A new study has for the first time identified regions of the genome associated with left-handedness in the general population and linked their effects with brain architecture. The study, led by researchers at the University ...

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