The X contains more genes related to brain function than does any other chromosome. “The X chromosome may be a treasure trove of genes that influence cognition, and these could be therapeutic targets, ...

Secretary of State Marco Rubio has directed the State Department to freeze applications in the passport pipeline with “X” ...

Plus: The NIH puts research grants on hold, a universal coronavirus vaccine, biology’s complexity, upcycling plastic and more ...

Secretary of State Marco Rubio has ordered the state department to stop passport applications with “X” markers, used by non-binary citizens.

Researchers at the Crick have uncovered which genes on the Y chromosome regulate the development of sperm and impact ...

Women are born with two X chromosomes and inherit one from each parent. But in every cell of their body, just one X ...

Researchers found that female mice using only maternal X chromosomes showed faster cognitive decline, which could help ...

Female mammals typically carry two X chromosomes — one from each parent — and a new study suggests that the maternal X is ...

Researchers aim to continue studying the role of the X chromosome in brain aging, and whether it can explain people’s risk of ...

Science has revealed some of the secrets of the X chromosome, but many remain. In humans, female cells contain two X ...

1 The first 22 pairs are known as autosomes, whereas the final pair are called “sex chromosomes,” which determine an individual’s sex, with a female having two X chromosomes (XX) and a male ...

One specific change they analyzed is the translocation of human PAR2 (pseudoautosomal region 2), a swapping of the tips of our X and Y chromosomes. This occurred relatively recently in primate ...