The study examines the long-term effects of fluoxetine in rat brains when administered at a young age, lead to a series of ...

Males imprint their DNA by adding methyl modifications to it in a way that alters the activity of genes in order to promote ...

Proposed language would recognize two sexes in North Carolina’s rules and public policies, echoing President Donald Trump’s executive order.

A new study in Nature shows that when pregnant mice don’t have enough iron, their (usually male) fetuses with a Y sex ...

Iron deficiency during pregnancy can cause a male mouse embryo to develop female features, a new study reveals. The low iron disrupts the activation of a key gene that spurs the development of male ...

The governing body for boxing apologized to the Algerian gold medalist after announcing a new gender eligibility policy.

According to conventional interpretations, after this period, the embryo typically goes on to develop into either a male or female based on its genetics – if the embryo had a Y chromosome at ...

Females usually have two X chromosomes (46,XX), and males have one X and one Y (46,XY). So when they say Imane has a “male karyotype,” it means her chromosomes look like the typical male ...

More information: Margaret Gadek et al, Aging activates escape of the silent X chromosome in the female mouse hippocampus, Science Advances (2025). DOI: 10.1126/sciadv.ads8169 ...

About 1 in every 650 male babies born have two or more X chromosomes and one Y. Those men, who have Klinefelter syndrome, don’t produce sperm.

Claims spread that definitions of "male" and "female" included in a January 2025 executive order that asserted sex is established at conception accidentally classified all Americans as women. The ...