Scientists have taken an important step forward in understanding the human genome - our genetic blueprint - by fully deciphering the enigmatic Y chromosome present in males, an achievement that ...

The Y chromosome is very different from X and the 22 other chromosomes of the human genome. It is smaller and bears few genes (only 27 compared to about 1,000 on the X).

The Y chromosome is one of two types of sex chromosomes in humans. Females carry two copies of the X chromosome, while males carry one X and one Y chromosome. The Y chromosome can only be passed ...

The male Y chromosome has disappeared from a species of rat, leading scientists to investigate how humans might also lose ours in the near future.. It's not all bad news for men though, as a paper ...