by Georg69 October 11, 2021
Get the Google Chrome mug.The Y chromosome is one of the two sex chromosomes (X and Y). Only men carry the Y chromosome. The Y chromosome is male specific, passing from father to son. It is responsible for many male characteristics.
The path of evolution is usually so quirky and complex that scientists shy away from making predictions. But the future of the Y chromosome seems clear. Graves points out that, on average, three to six genes have disappeared from the Y every million years since the chromosome emerged. At that rate, the Y has only 10 million years left. It's an old chromosome, at death's door.
The death of the Y doesn't mean the death of men. Men need only look to the mole vole for comfort. Burrowing through the soil of western Asia are two species of these rodents (Ellobius tancrei and E. lutescens) that have lost all the genes from their Y chromosome--in fact, they no longer have a Y chromosome at all. In one of these species, both males and females have been left with just the unpaired X; in the other, both sexes have two X's. No one knows how mole voles ended up being the first mammals to cross over into the Y-free future. But along the way, they must have evolved new genes--on other chromosomes--that are responsible for making males. One of those genes took over the job of SRY, and the chromosome on which it resides is probably on its way to becoming the new Y.
If our species manages to survive for another 10 million years, our descendants will go on making men even after their Y chromosome vanishes. But the change may not be smooth. Graves speculates that several new systems for determining sex could emerge within the global human population. People conceived under one system might be genetically incompatible with those conceived under others. As a result, the human species could fragment into separate populations and, ultimately, separate species. Which of them will prefer football and which the ant nest, we'll have to wait and see.
The death of the Y doesn't mean the death of men. Men need only look to the mole vole for comfort. Burrowing through the soil of western Asia are two species of these rodents (Ellobius tancrei and E. lutescens) that have lost all the genes from their Y chromosome--in fact, they no longer have a Y chromosome at all. In one of these species, both males and females have been left with just the unpaired X; in the other, both sexes have two X's. No one knows how mole voles ended up being the first mammals to cross over into the Y-free future. But along the way, they must have evolved new genes--on other chromosomes--that are responsible for making males. One of those genes took over the job of SRY, and the chromosome on which it resides is probably on its way to becoming the new Y.
If our species manages to survive for another 10 million years, our descendants will go on making men even after their Y chromosome vanishes. But the change may not be smooth. Graves speculates that several new systems for determining sex could emerge within the global human population. People conceived under one system might be genetically incompatible with those conceived under others. As a result, the human species could fragment into separate populations and, ultimately, separate species. Which of them will prefer football and which the ant nest, we'll have to wait and see.
by Denise20p November 7, 2008
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Drooling over a custom-built, chromed-out chopper, a lifestyle is exchanged for one of chrome. Southern California natives bear witness to this scenario: hands sweeping across a lower lip, and with the brush of each foaming molecule, one is slowly transformed into a machine--a chromeosexual.
by Mr. Keith September 7, 2006
Get the Chromeosexual mug.Internet browser created by google. It started pretty humble and it used to crash pretty often back in the day. But as time goes by, it gets better and better. Soon will kick out firefox, safari, opera and obviously ie (you dont need to be too god to do that)
Advantages of this browser are speed & elegance in the simplicity of its UI. Requires minimal screen space and only shows the main icons a browser needs. Yet it has other buttons where you can access more complicated functions.
Chrome will be a key piece in google's OS.
Advantages of this browser are speed & elegance in the simplicity of its UI. Requires minimal screen space and only shows the main icons a browser needs. Yet it has other buttons where you can access more complicated functions.
Chrome will be a key piece in google's OS.
by nerdbimbo November 14, 2009
Get the google chrome mug.OG Bobby didn't use his chrome peice on that herb; rather, he prefered to use Nate-Dog's golf club to jack that busta.
by JesusChristIsLove May 16, 2006
Get the chrome peice mug.While doing a keg stand naked, someone comes from behind with a chrome dildo and slams it in your ass.
Did you see Brian get chrome dogged last night at the party, he'll never do a keg stand naked again.
by whosyourdonny October 3, 2009
Get the Chrome Dog mug.by Outdoorsaddix October 24, 2019
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