Y chromosome news

From: Phil Osborn (philosborn2001@yahoo.com)
Date: Sat Jun 21 2003 - 16:56:42 MDT

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    Ha! Of course, we men always knew that we were
    superior - poor women with only one X chromosome
    turned on, while men get the X AND the extras on the
    Y!

    At least, that's what the newspaper said (leaving out
    the jubilation, that is). Altho, I wonder if it's
    true. Is one of the X's turned off in women? I had
    read, long ago, that one of the reasons for the
    instability of males, in many, many respects, as well
    as the shape of various bell curves, was that bad
    genes on X are always expressed in men, having only
    the one copy, while women were able to mask a bad gene
    on the spare X. Thus, a lot more idiots and geniuses
    among men - altho, once in a while, a woman gets two
    copies of the best possible X, so you see a few women
    way out there on the curve, beyond where any man can
    get.

    So - super women of extropy (I assume we got a more
    than random scattering of those XX (no pun intended) -
    which is correct? Is one X turned off? Or is it
    random from cell to cell, so that half of the cells
    get a bad gene, while the other half get the good one
    turned on?

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