There's new
information, at least theoretically, that the male Y chromosome could be
disappearing. This work was done at Penn State. It's in the journal
PLoS Genetics. Researchers say there is
a dramatic loss of genes from the human Y chromosome and it could eventually
lead to its complete disappearance over the next million years or so.
While some genes seem to be essential, like those for sperm development, most
have been lost and the researchers say that they found evidence that many are
on a track to disappear as well. If this happens, researchers say a new
pair of chromosomes will likely start down the path of becoming X and Y sex
chromosomes. It's pretty fascinating how you can actually see mutations
occur, but this is essentially how the world has developed; changes and
development. With those differences came different people.
