Human biological sex is determined ... the centuries has led scientists to predict that the Y chromosome might vanish entirely in about 11 million years," said Earth.com. From our morning news ...

Human chromosome 17 corresponds entirely to a portion of mouse chromosome 11. Other chromosomes, however, show evidence of more extensive interchromosomal rearrangement. Results such as these ...

In particular, it explains that humans have one fewer chromosome pair in their cells than apes, due to a mutation found in chromosome number 2 that caused two chromosomes to fuse into one.

They found that during an average follow-up time of 11.5 years, men with loss of Y chromosome in more than 40 percent of their white blood cells showed a 31 percent increased risk of cardiovascular ...