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Prostate Cancer | Last Active: Jun 10 6:42am | Replies (80)
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Replies to "@readandlearn, at least part of the suggestion troubled your scientific mind. You can't secure both X..."
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@gently
Not sure what you are saying. I hope it's not word games.
The mother's eggs have only X chromosomes.
The father's sperm can have either an X or Y chromosome, but not both in the same sperm.