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The sex chromosomes make a man and a woman. The pair XX make a woman and XY makes a man. The Y chromosome has very few genes, mostly those for "malesness".

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10y ago
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14y ago

The "Y" chromosome indicates "maleness".

So, "XX" is female, and "XY" is male.

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12y ago

Men: xy

Women:XX

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Q: What chromosomes make a man and which make a women?
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