The special relationship between twins allows researchers to examine the differences between genetic and environmental influences over both physical and mental health, as well as traits and behaviors. By studying twins, we can learn a lot about diseases, disorders, and human nature in general. Research on twins helps answer questions about many aspects of being human. About three or four in every 1000 births are identical twins.
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STEP 2 OF 2Verify domain ownership
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Type: TXT
Host: @ (the root of your domain)
Value:
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