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.

For most females, this pair contains two X chromosomes, while for most males, it contains one X chromosome and one Y chromosome. Since 2010, scientists have known that the Y chromosome is rapidly ...

Certain mutations affect only a fraction of a child’s cells. They are called mosaic mutations, and they open a new avenue for ...

Gender and sex are more complicated than X and Y chromosomes. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Gender reveal parties are ...

Benjamin holds a Master's degree in anthropology from University College London and has worked in the fields of neuroscience research and mental health treatment.

Females had two X chromosomes, while males had one X and one Y. Y chromosomes are hard to sequence because they contain a lot of repetitive “junk” DNA, so the Neanderthal Y genome has only ...

Sex may also be assigned based on the X and Y chromosomes found on a genetic test. Commonly, people with XX chromosomes are assigned female at birth, and people with XY chromosomes are assigned male.

A recent study reveals that the Y chromosome evolves much faster than the X chromosome. This discovery raises questions about the evolutionary mechanisms specific to this male chromosome. Humans and ...

"This work demonstrates that gender has an independent influence on the brain, beyond the influence of sex itself," the researchers told Newsweek.

Wyoming Game and Fish have released 3,600 Trojan male brook trout into Game Creek, a Snake River drainage, in a long-term ...

Mosaic Loss of the Y Chromosome Is Enriched in Patients With Wild-Type Transthyretin Cardiac Amyloidosis and Associated With Increased Mortality. Circulation: Heart Failure , 2024; DOI: 10.1161 ...

it contains one X chromosome and one Y chromosome. Since 2010, scientists have known that the Y chromosome is rapidly evolving in humans, but a new study shows that the same can be said across all ...