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Understanding Barr bodies in somatic male cells

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If the somatic cells of a human male were found to contain one Barr body in their nucleus the most likely chromosome makeup of the individual would be:

XO

XX

XYX

XXY

XXX

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Understanding Barr bodies in somatic male cells is depicted.

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If a person is male, he has to have at least one Y chromosome, so XO, XX, and XXX aren't possible - those would all be women, genetically speaking.

A Barr ...

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