Y chromosome is steadier than science used to think
(NEWSER) - Relax, guys. It's no longer certain at all that you'll be extinct in 100,000 years, as one genetics professor predicted. Another scientist had decided that the all-important (to men) Y chromosome was losing genes at a rate that would make it non-existent in some 5 million years, and could spell the end of man much more quickly than that. But now a new study says the genetic decay seems to have stopped. Why? No one knows for certain, but the latest study has determined that most of the genetic loss occurred long, long ago, and that only a single gene has been lost in the last 25 million years. More»
