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| Judith | Sep 30 2007, 07:00 PM |
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Proud global mod!
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Lol, yeah I guess you're right! X and Y chromosomes determine your gender. X+X = girl, X+Y=boy. Crows |
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| A-Z of Living Things · Board Games | |





![]](http://209.85.48.22/static/1/pip_r.png)
that came to mind b/c I am now taking Biology and a chromosome is like a cell or something


12:34 AM Nov 26