Because males have only inherited one X chromosome, it is sure to be expressed. How do sex chromosomes affect intelligence? Created with Sketch. The X chromosome carries at least 150 genes linked ...

When it comes to genetics, children get a mix of traits from both parents. But, it might be a surprise for some people that ...

Some research suggests that the majority of intelligence genes are on the X chromosome. Since women have two (XX) and men have only one (XY), the transmission of intelligence may be more ...

The genes that determine intelligence are located in chromosome X. And because women carry two X chromosomes and men carry only one, the conclusion is that women are twice as likely to transmit ...

In a new study, scientists probed the ways in which the X chromosome may change with age and affect cognition. . | Credit: ...

For the past 40 or 50 years, researchers searched for the trigger behind sex-biased autoimmunity. “We have thought that the X chromosome had something to do with the autoimmune predominance. This ...

In a surprise, work in mice has found that the dormant X chromosome in females can reawaken late in life and turn on genes that keep the brain healthy. UCSF researchers may have discovered how the ...

The reason female brains have less cognitive aging may be due to the reawakening of the dormant X chromosome late in life, which turns on genes that help sustain healthy brain cell connections.

Why are the human sex chromosomes called “X” and “Y,” while the other 22 chromosomes are identified only by numbers? The answer begins in the late 1800s, when insect gonad cells, whose large ...

Females carry two X chromosomes. One of them is ensconced in a corner in the cell called the Barr body, where it can’t express many genes, and scientists thought it didn’t do much of anything. But the ...

The X and Y chromosomes, commonly referred to as the sex chromosomes, are one such pair. They determine the biological sex, reproductive organs, and sexual characteristics that develop in a person.