Unexpected source of genetic diversity found in human sperm

Scientists have identified an unexpected source of genetic variation in human sperm that occurs earlier in sperm development than previously thought. Published in Nature, researchers at the Wellcome Sanger Institute, the ...

Gut bacteria mostly compete—but cooperation finds a way

Understanding how bacteria influence one another is essential for understanding how microbial communities are formed and maintained. Researchers at Umeå University have now systematically mapped interactions between common ...

Lab-grown brain models gain a sense of place

The human brain is often described as one of the most complex structures in biology, and much of its power comes from how it's organized. Its outer layer, the cerebral cortex, is not one uniform sheet. As the brain develops, ...

How chromosomes find their partners

For a long time, so-called satellite DNA was considered largely worthless. Now, ETH Zurich researchers have shown in fruit flies that these repetitive sections of genetic material act as a kind of barcode, enabling the correct ...

page 1 from 15