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| | TWINS |
 | | Twins are natures handmade clones, doppelgangers moving in synchrony through circumstances that are often eerily similar, as if they were unwitting dancers choreographed by genes or fate or God, thinking each others thoughts, wearing each other's clothes, exhibiting the same quirks and odd habits. |
 | | Twin research is flawed, provocative, and fascinating, and it topples some of our most cherished notions--the legacies of Freud and Skinner included--such as our beliefs that parenting style makes an irrevocable difference, that we can mold our children, that we are free agents piecing together our destinies. |
 | | All girls inherit two X chromosomes, one from each parent, while boys inherit an X and a Y. Girls automatically shut off one X in every cell, sometimes some of the mother's and some of the father's, in other cases all of the mother's or all the father's. |
| www.nyu.edu /classes/neimark/TWIN1.HTM (4434 words) |
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