“We’ve known that tiny fragments of ancient DNA can survive for long periods of time,” said Dr. Marcela Sandoval-Velasco of the Center for Evolutionary Hologenomics at the University of Copenhagen and ...

In humans and many other animals, specific chromosomes determine sex. But how did researchers discover these so-called sex chromosomes? The Sex of Offspring Is Determined by Particular Chromosomes ...

A new study has found that the X chromosome, of which one copy is typically inactivated in XX female cells, can also be inactivated in some male cancers. The study is published in Cell Systems. The X ...

New research shows that the male X chromosome is silenced in some types of cancer. Researchers evaluated how a certain gene affects the male X chromosome in cancer cells. Experts explain why these new ...

Scientists have long known that cancer cells typically have extra chromosomes, but what exactly was the extra genetic material doing? New research from a team at Yale University has finally provided ...