alive, aren't they? They're primates. They're social animals. So yes, girls may like to play with Barbie, but make the wrong move, sister, and ooh, ah, here's your own Dentist Barbie in the trash can, stripped, shorn, and with toothmarks on her boobs.
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If you are or have ever been a girl, you know that girls are aggressive. This is news the way the Code of Hammurabi is news. Yet the girls in station break Candyland are never aggressive; in fact, they are getting gooier by the year. Nor are the girls who prance through the meadows of biological theory ever aggressive. No, they're prosocial . They're verbal, interactive, attentive, amiable. They're the friends you wish you could buy along with the Belchee Baby you saw on TV. Take, for example, a 1997 report that appeared in the journal Nature . Researchers from Britain described their studies of girls with Turner's syndrome, an unusual condition in which a girl has only one X chromosome rather than the two Xs found in most girls. The scientists began with the very intriguing observation that there are differences in social skills between Turner's girls depending on their chromosomal background. Normally a girl inherits one X chromosome from her mother, one from her father. A Turner's girl, who has but a single X chromosome, can receive it from either her mother or her father. What the scientists discovered, in their study of one hundred Turner's girls, was that those girls who had inherited their X chromosome from their fathers were more genial than those whose X had been bestowed by Mom. Daddy's girls tended to be friendly, socially adept, and well adjusted. The mother's lot were comparatively sullen, awkward, tongue-tied in company, prone to offensive or disruptive displays. All of which was fine and fascinating and offered a glimpse into the behavioral palette of Turner's syndrome, but the scientists went further. They extended their results to say something about the innateness of good behavior in girls all girls. They proposed that the Turner's girls with the paternal X chromosome, the socially well-adjusted ones, were the girl-like girls, and those with the maternal X chromosome, the socially offensive or inept ones, carried a more boylike genotype. Their reasoning was serpentine and abstruse, but in the final analysis they spooned up a portrait of girls as genetically predisposed toward sociality, diplomacy, and affability. By their dubious hypothesis, the X chromosome carries a gene for social grace that is active in normal girls but is kept silent in normal boys, a sexually
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