The human Y chromosome, ... In the last 300 million years, it has lost 1393 of its original 1438 genes, and at this rate it will lose the last 45 in a mere 10 million years.

The sequences ranged from 45.2 million to 84.9 million base pairs in length, and taken together, they show that the Y chromosome has substantially diversified in its size and structure over this time.

The first human genome was completed in April 2003, but it left behind some unknown gaps, including swathes of the Y chromosome. The chromosome’s repetition made it a challenge to reconstruct.

Miga and Adam Phillippy, the co-leader of T2T and a senior author on the Y chromosome study, initially came together to launch the consortium after working together in 2018, using ultralong reads to ...

“Now that we have this 100 percent complete sequence of the Y chromosome, we can identify and explore numerous genetic variations that could be impacting human traits and disease in a way that ...

Of note is the striking variation in size and structure across the 43 Y chromosomes sequenced that covered 180,000 years of human evolution and range from 45.2 million to 84.9 million base pairs ...

The chromosome associated with male development, which is the last mysterious piece of the human genome, has been fully sequenced by a team of more than 100 researchers around the world, including ...

STUDIES of human chromosomes have been greatly facilitated by the development of newer technics, ... besides the usual 45-chromosome XO cells, many 46-chromosome XX cells occurred.

For many years, the human Y chromosome was terra incognita. Scientists completed the genetic sequences of other chromosomes, the threadlike structures that hold an organism’s DNA. But more than ...

The human Y did once contain as many genes as the X chromosome, but has lost them in the past 166 million years. As a result, most of the Y today is made up of repetitive "junk DNA ." ...