Research suggests X and Y chromosomes may influence aging and disease risk, beyond determining biological sex.

A new study brings together growing evidence that the X and Y chromosomes do much more than just determine biological sex.

Men tend to lose the Y chromosome from their cells as they age. But because the Y bears few genes other than for male determination, it was thought this loss would not affect health. But evidence has ...

Add Yahoo as a preferred source to see more of our stories on Google. (Cavan Images/Getty Images) The human Y chromosome is shrinking. In the next 5 million years or so, some geneticists think the sex ...

Researchers have fully sequenced the chromosome associated with male development, which is the last mysterious piece of the human genome. The achievement completes the Y chromosome’s genetic code and ...

Cancer has been pulling off an elaborate deception, one that explains why men die from the disease more often than women—and why some cutting-edge therapies might be doomed to fail. The culprit is the ...

Prognosis is poor for tumours with Y-chromosome loss. Examining the interplay between cancer and immune cells sheds light on potential mechanisms. Read the paper: Concurrent loss of the Y chromosome ...

Human sex chromosomes originated from a pair of autosomes, the ordinary or non-sex chromosomes that contain the majority of our genome and come in identical pairs. That ancestral pair of autosomes ...

Then SRY evolved (from an ancient gene with another function) on one of these two chromosomes, defining a new proto-Y. This proto-Y was forever confined to a testis, by definition, and subject to a ...

The Y chromosome is the smallest chromosome, and holds the least amount of genes, but scientists are still learning about all of its biological functions. Research has shown that many men start to ...

Researchers at the Francis Crick Institute studying male mice engineered with different Y chromosome deletions have uncovered which genes on the mouse Y chromosome regulate the development of sperm ...