Females have two X chromosomes (XX). Males have one X and one Y chromosome (XY). All eggs contain one X chromosome. Half of sperm contain one X chromosome and half contain one Y chromosome.

The Trump Administration’s definition of biological sex does not accurately reflect modern science.

However, when they analysed samples from transgender females (XY chromosomal background ... said: “The X chromosome carries numerous genes that are important for human immune responses, so it was ...

Post readers dive into transgender issues in sports, science and more.

The U.S. Department of Education issued a "final warning" to Maine's Department of Education Monday, saying the Trump administration's next step is legal action if state officials do not ban ...

Allies and advocates are encouraged to attend a Transgender Day of Visibility event in Kelowna on March 31, to take a stand ...

Tuesday began a series of mass layoffs targeting staff, departments, and whole agencies within the U.S. Department of Health ...

The flowerpot snake, one of the world's smallest snakes, has some unusual distinctions. Also known as the Brahminy blind ...

Chromatin remodeling plays a vital role in gene regulation, affecting how DNA is accessed. Disruptions in this process can ...

March 31st is designated International Transgender Day of Visibility to raise awareness of transgender people in the population. Transgender people represent approximately 0.6% of the adult population ...