Hi
On Wed, 17 Nov 1999, Andrew Swihart wrote:
> It is my understanding that MZ twins share a significantly more similar
> prenatal environment than DZ twins. Could someone briefly explain to me
> the mechanisms which render MZ prenatal environments more similar than
> those for DZ, and direct me to a reference source(s) with the details?
I can't help with a reference, but my understanding from a quick
look a few years ago was that MZ are more likely to share a
single placenta and a single chorion (enclosure within womb). I
have long wondered how one controls for this in studies of
heritability or whether it has been.
Best wishes
Jim
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James M. Clark (204) 786-9757
Department of Psychology (204) 774-4134 Fax
University of Winnipeg 4L05D
Winnipeg, Manitoba R3B 2E9 [EMAIL PROTECTED]
CANADA http://www.uwinnipeg.ca/~clark
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