Genetic crossovers defy chromosome-length model in male and female mice

A Cornell-led study is challenging a decades-old explanation for how chromosomes exchange genetic material within the ...

Gene-edited babies are now closer to becoming a reality. The ethical debate is far from settled

New research shows it’s possible to edit the DNA of human embryos with more precision. But scientists warn it’s still not ...

The evolutionary pressure behind sexual asymmetry revealed in yeast cell study

A major transition in evolution is the shift from asexual to sexual reproduction in early organisms. But why would a yeast ...
Nature

From cloning to gene-editing: the enduring legacy of Dolly the sheep

Taxidermied, locked behind plexiglass and spinning slowly on a wooden dais in the National Museum of Scotland in Edinburgh, UK, the world’s most famous ewe remains a public spectacle three decades ...
Scientific American

The biological dogma that women don’t make new eggs after birth may be wrong

Female mammals have long thought to be born with all the eggs they would ever have, but new research is challenging that consensus ...