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Name: Tehilla
Status: Other
Grade:  Other
Location: TX
Country: United States
Date: January 2006

My question is, has it been proved that the chances of having twins in families is hereditary?

There is no positive hereditary link that has been identified for identical (monozygotic) twinning at this writing, however, there is a possiblity. Fraternal (dizygotic) twinning has more data to suggest it may well be inherited. 12/2005

Steve Sample

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