Some women carry men's DNA

Long after a son has grown up, or an older brother has moved out, a woman appears to carry pieces of his fetal DNA in her brain, a study finds.
la-heb-women-brain-microchimerism-20120926-001

Long after a son has grown up, or an older brother has moved out, a woman appears to carry pieces of his fetal DNA in her brain, a study finds.

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