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

University of Adelaide researchers discovered monotremes use a completely different sex determination system than other ...

Scientists are expressing concerns about male reproductive health due to the Y chromosome's genetic material loss, ...

For decades, scientists have known that platypuses and echidnas – Australia's unique egg-laying mammals – have another ...

Researchers from the University of Adelaide, in collaboration with the University of Melbourne, University of Queensland and ...

A human’s sex is genetically determined. One of our 23 pairs of chromosomes carries genes that determine the embryo’s sex; ...

"Sex differences in age-related disease are incredibly ... While the role of the X chromosome and some escape genes have been studied before, the discovery that many genes on the inactive X ...

Researchers mapped Y chromosome loss across thousands of individual cells from human cancers, with disturbing results.

Octopuses Have Ancient Sex Chromosomes! 🧬🐙 Posted: May 31, 2025 | Last updated: May 31, 2025 Octopuses just stunned scientists again this time with their ancient and highly unique sex ...

The present communication reports the occurrence of spontaneous non-disjunction of the sex-chromosomes in Drosophila males.

Imane Khelif, the Algerian boxer who won gold in Paris, is under scrutiny again as chromosome tests from 2023 indicated a male karyotype.

In a science first, an environmental factor is shown to alter sex development in mice before birth.