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Tue 18 Jul, 2006 08:22 pm
What are the statistics that my son and his girlfriend will have twins when the mothers on both sides are twins, does anyone know where I could find the answer to this??
...the propensity to bear fraternal twins does run in families, but one generation doesn't necessarily have a higher probability of having fraternal twins than another. Fraternal twins occur in about 12 of every 1000 births. There is no evidence that the likelihood of having identical twins is impacted by genetics. Identical twins occur in approximately 4 of every 1000 births, and are no more common in any one group of people.
link
im sure if you went onto
google or
ask you could find the answer
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