Two decades after the human genome sequence was completed, researchers have finally finished a map of the piece that makes males distinct. The Y chromosome is what distinguishes biological males ...

Now, they've completed the elusive Y chromosome map. In what might be a surprise for some, the male sex chromosome is far more complex than its female counterpart.

Despite its macho connotations, the Y chromosome is among the tiniest of the 46 chromosomes in the human genome. It makes up only 2 percent of a human cell’s total DNA. But because of its ...

The Y chromosome, along with the X chromosome, is often discussed for its role in sexual development. While these chromosomes play a central role, the factors involved in human sexual development are ...

Scientists fully sequence the Y chromosome for the first time, uncovering information that could have implications for the study of male infertility and other issues.

"It finally provides the first complete view of a Y chromosome's code, revealing more than 50% of the chromosome's length that was previously missing from our genome maps," said University of ...

The Y chromosome can disappear over time in human males, which may introduce a number of health problems. While the exact ...

By the age of 70, about 40% of men have lost the Y chromosome in at least some of their white blood cells. This condition, ...

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

It's common for men to lose the Y chromosome in their cells as they age. But a new study finds a strong link to bladder cancer, and a potential therapy for it.

While all human chromosomes contain repeats, more than 30 million letters of the Y chromosome — out of 62.5 million — are repetitive sequences, sometimes called satellite DNA or junk DNA.