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Seeing X Chromosomes in a New Light

19/03/2014 Σχολιάστε

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In a female mouse’s brain, a left-to-right pattern in the silencing of the X chromosome. These patterns may influence how individual brains function. Hao Wu and Jeremy Nathans/Cell Press

By CARL ZIMMERJAN, The New York Times, 20.1.2014

The term “X chromosome” has an air of mystery to it, and rightly so. It got its name in 1891 from a baffled biologist named Hermann Henking. To investigate the nature of chromosomes, Henking examined cells under a simple microscope. All the chromosomes in the cells came in pairs.

All except one.

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