How can one person's genetic makeup contain the DNA of two different people?!--h2>
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What is a chimera? Hank's told you about the Human Genome Project and epigenetics, and now he explains how one person may hold the DNA of two different people—whether that means the person ends up with both male and female reproductive organs, or that a child may not genetically appear to be his own mother's kid. Speaking of mothers, could your mom be a chimera? Hank tells us why it's more common than you'd think.